Pacific Northwest Region Licthic Materials

Materials Identification Guide

Pacific Northwest Region Lithic Material

Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated Formation / Member
Addy Quartzite				Ranges from a grayish white to a yellowish gray or yellowish brown.	Washington	Addy Quartzite Formation
Adna Carnelian AKA: Salmon River Carnelian				Ranges from a salmon pink to a deep red	Washington
Agate Jasper				Ranges from yellow to brown or green. Part if the material will be banded and be translucent while the remaining material will be mottled and opaque.	Colorado, Montana, Nebraska, Alberta, Saskatchewan, British Columbia, Washington, Idaho, Oregon, Wyoming, Utah, Nevada, California
Agnes Creek Obsidian				Black	Washington
Alaska Canyon Obsidian				Black with phenocrysts and inclusions present.	California
Alberta Ironstone AKA: Ironstone Concretions				Ranges from a dark rusty brown to black	Alberta, British Columbia
Anahim Obsidian				Black	British Columbia
Andesite Generic Type					North America	Varies
Anvil Quartzite				Ranges from a dark gray to brown	Yukon	Anvil Formation
Askin Quartzite				Cherty appearance ranging from a dark to light gray to buff weathering to a brownish gray.	Yukon	Askin Group
Atan Quartzite				White	British Columbia, Yukon	Atan Group
Backbone Ridge Obsidian AKA: Seaman Gulch, South Forest Camp (Tuscan Volcanics)				Black with reddish brown streaking and patches and lighter bands of translucent gray or clear present (mahogany obsidian).	California	Tuscan Volcanics
Baird Chert				Light gray	California, Oregon	Baird Limestone Formation
Banff Chert				Commonly banded ranging from a dark gray to a bluish black	Southwestern Alberta	Banff Formation
Basalt				Ranges from black to gray	Colorado, Wyoming, Montana, North Dakota, Alberta, Saskatchewan	Volcanic
Bat Cave Jasper AKA: Rim Jasper				Dense banded high quality jasper with colors of light to dark brown, tans, and black. Light blue, reds, and greenish yellow may occur	Oregon
Beacon Hill Moss Agate AKA: Hog Creek Agate, Idaho Potato Agate				White to light gray to bluish gray matrix with dendritic or sagenitic inclusions.	Idaho
Bear Creek Moss Agate AKA: Bear Creek Plume Agate				Mottled clear to light gray or light blue matrix with inclusions of red, yellow, or brown or white plumes.	Oregon
Beatys Butte Obsidian				Ranges from a dark gray to black with reddish brown streaking and patches occurring.	Oregon
Belverdere Jasper AKA: Belvade Jasper				Colors of greens, yellows, reds, oranges, and grays	Oregon
Bickleton Ridge Obsidian				Black	Washington
Big Obsidian Flow Obsidian AKA: Buried Obsidian Flow Obsidian				Black with dark gray banding with small phenocrysts occasionally occurring.	Oregon
Big Stick Obsidian				Black	Oregon
Blackjack Basalt				Dark gray when freshly fractured weathering black, brown, and red.	Oregon, Idaho	Blackjack Basalt Member of the Payette Formation
Blue Chert				Ranges from blue to greenish blue with white veins commonly present.	Oregon, California
Blue Mountain Jasper				Colors of blue, green, and olive orbs.	Oregon
Blue Mountain Obsidian AKA: Steel (Steele) Swamp Obsidian				Greenish black color	California
Blue Springs Obsidian AKA: Sugar Hill Switchback Obsidian				Black	California
Bridge River Chert				Ribbon chert ranging from a light to medium gray, but may range to red, brown, or green with "ribbons" of small vein quartz..	British Columbia	Fergusson Assemblage of the Bridge River complex
Briggs Jasper AKA: China Hollow Jasper, Dolphite Jasper				Primarily brown with light to dark brown, yellow, tan, blue, or grayish brown "landscaping" patterns or lines bands and arcs.	Oregon, Washington	John Day Formation
Broken Top Obsidian				Primarily black, but ranges to varicolored with streaks.	Oregon
Brooks Canyon Obsidian				Black	Oregon
Brown's Ranch Petrified Wood				Colors of brown to reddish brown and tan with quartz and bluish chalcedony inclusions.	Washington
Buck Springs Obsidian AKA: See page for list				Black	Oregon
Buck Mountain Obsidian AKA: Nelson Quarry, North Fork, Tick Rise Obsidian				Ranges from a medium gray to black, flow banding may be present.	California
Buena Vista Overlook Obsidian				Black	Oregon
Burns Butte Obsidian				Ranges from black to a light to medium grayish green. Darker banding may be present.	Oregon
Butcher Flat Obsidian AKA: Drew's Creek Obsidian				Black	Oregon
Butte Creek Obsidian				Black	Oregon
Buzzard Roost Obsidian				Multi-colored	California
Cache Creek Jasper				Green	British Columbia
Callahan Obsidian				Homogenous black to a bluish black with no banding present..	California
Camels Hump Agate				Banded with shades of gray and black	British Columbia
Carlon Obsidian AKA: Bald Butte Obsidian				Black	Oregon
Carver Flow Obsidian AKA: : Demaris Lake, Ludwig Quarry, Squaw Creek.				Ranges from a dark gray to black with abundant small phenocrysts	Oregon
Cataldo Quartzite				Lilac color when freshly fractures and oxidizes to a light gray.	Idaho, Washington	Cataldo Member of the Belt Series
Carnelian Generic Type				Translucent and varies in shades from reddish brown to reddish orange.	North America	Varies
Chandler Mountain Carnelian				Ranges from red to orange or yellowish orange. Banding may be present.	Oregon
Chehalis Wood					Washington
Chelan Butte Obsidian				Greenish / bluish gray with abundant phenocrysts	Washington
Chewelah Argillite				Ranges from a silver white to shades of red and gray.	Washington	Chewelah Formation
Chickahominy Obsidian				Black	Oregon
Chicken Track Jasper				Shades of brown, blue, and white	Oregon
China Hat Obsidian				Ranges from gray to black.	Oregon
Chuckanut Sandstone AKA: Huntingdon Sandston				Golden tan	Washington, British Columbia	Chuckanut Formation, Huntingdon Formation (British Columbia)
Clackamas River Obsidian AKA: Mill Creek Buttes Obsidian				Black	Oregon
Clarke Lake Jasper				High quality red jasper	British Columbia
Cleetwood Obsidian				Black with reddish brown streaking and patches	Oregon
Coglan Buttes Obsidian				Black with a purple sheen	Oregon
Colebrooke Metachert					Oregon	Colebrook Formation
Condrey Mountain Quartzite / Chert				Gray recrystallized chert forming a "sugar quartz"	California, Oregon	Condrey Mountain Formation
Copper Ridge Obsidian				Black	Washington
Cougar Butte Obsidian				Milky gray to black color that is tinged with a splotchy pinkish purple cast. Commonly has phenocysts inclusions (snowflake obsidian)	California
Cougar Mountain Obsidian				Ranges from a medium gray to black, occasionally reddish brown streaking occurs.	Oregon
Cowshead Lake Obsidian AKA: Bidwell Mountain Obsidian				Ranges from black to a black, gray, and purple.	California
Coyote Butte Argillaceous Wackestone				Yellowish Tan	Oregon	Coyote Butte Formation
Coyote Butte Chert				Ranges from gray to black with translucent patches.	Oregon	Coyote Butte Limestone Formation
Coyote Wells Obsidian AKA: Buckboard Reservoir Obsidian, Mesa Reservoir Obsidian				Black	Oregon
Crater Lake Flower Jasper				Bright red or yellow plumes in a clear to milky white or bluish white matrix	Oregon
Creston Quartzite				Ranges from a pale green to a bluish grey or maroon	British Columbia, Montana, Idaho	Creston Formation
Crooked River Moss Agate / Carnelian AKA: Eagle Point Agate				Light gray banded chalcedony with brown dendritic inclusions or limbcasts. Carnelian is delicate colors. Eagle Point agate is red and black.	Oregon
Curtis Creek Obsidian				Black	Oregon
Dacite Generic Type				Most commonly a light to dark gray or black	Western North America	Varies
Dalsite				Breccia jasper with colors of green, white yellow and dark gray	British Columbia
Davis Creek Obsidian				Range from black to multi-colored.	California
Deep Creek Agate / Petrified Wood					California
Deep Lake Argillite				light to dark colored with interbedded bluish gray course to fine grain banding.	Washington	Deep Lake Formation
Deer Creek Obsidian AKA: Burnt Butte Obsidian				Black	Oregon
Delintment Lake Obsidian AKA: Holmes Canyon, Wright's Point Obsidian				Black	Oregon
Del Prat Spring Obsidian				Vitreous black with banding occurring	California
Deschutes Jasper AKA: Dechutes Canyon Jasper				Brown tones, but has tight banding not forming "landscape" patterns	Oregon, Washington
Devils Hill Obsidian				Ranges from a dark gray to black commonly with fine banding and spherulitic.	Oregon
Devils Point Obsidian				Black	Oregon
Disaster Peak Jasper				Shaded of brown and tan with darker banding commonly forming "landscapes".	Nevada, Oregon
Dollar Watch Pass Obsidian				Black	Washington
Double O Obsidian				Black	Oregon
Drews Valley Ranch Obsidian AKA: Drews Creek, Drews Reservoir Obsidian				Ranges from a light to dark gray or black.	Oregon
Eagle Point Carnelian / Moss Agate				Carnelian is a salmon color and the moss agate has a light white or gray matrix with black dendritic inclusions.	Oregon
Eagle Rock Plume Agate				Colors or plumes of blue, pink, red, brown and black, commonly has a gray matrix.	Oregon
East Creek Obsidian				Black	British Columbia
East Butte Obsidian				Black	Oregon
East Lake Obsidian				Ranges from dark gray to black with gray and colorless banding with small rod shaped crystallites and small grains of magnetite, feldspar, and microlites.	Oregon
Elk Pass Obsidian				Black	Washington
Elkhorn Ridge Argillite AKA: Haida Stone				Ranges from a light gray to a dark or greenish gray.	Oregon, Washington, British Columbia	Elkhorn Formation
Elk River Silicified Mudstone				Ranges from muddy brown to grey or black. A mottled "wormified" or light "‘vermiculated" streaking may be present	British Columbia, Alberta	Elk River Formation
Ellensburg Blue Chalcedony AKA: Crystal Mountain, Red Top Mountain, and Peoh Point Agate				Ranges from a light sky blue to a cornflower blue.	Washington
Empire Valley Chalcedony				Colors of clear, to an amber or orange and green in a variety of patterns.	British Columbia
English Creek Chert AKA: Klinkit Chert				Gray	Yukon, British Columbia	English Creek Formation of the Klinkit Group
Enhydro Agate				Varies in color, but has tiny air bubbles inside the material.	Oregon
Etherington Chert				mottled with colors of primarily gray with shades of brown, red, and purple. Quartz inclusions and micro fossils are present.	British Columbia, Alberta	Etherington Formation
Fantasque Chert				Bluish gray	Yukon, Northwest Territory, British Columbia	Fantasque Formation
Franciscan Chert				Ranges from brown to reddish brown or yellow brown, white to gray, greenish gray to black. Generally has reddish or greenish hues	California	Franciscan Formation
Frieda Agate				Banded and ranges from colors of gray to white with green chlorite between the matrix and cortex.	Oregon
Fryite Jasper				Shades of tans, grays, and blues.	Idaho, Washington
Funnel Creek Chert				Dark gray	Alaska, Yukon	Funnel Creek Formation
Glacial Pass Concretions AKA: Glacial Pass Siliceous Mudstone				Ranging from dark gray or brown brown to beige, and greyish brown with some purplish brown	British Columbia, Alberta	Fernie Formation
Glass Mountain Obsidian AKA: See list				Ranges from a black to gray with banding commonly present	California
Glass Buttes Obsidian AKA: Aurora Borealis Obsidian, Rainbow Obsidian, Northern Lights Obsidian				Banded with colors of black, and grays most commonly but may have bands of greens and purples.	Oregon
Glen Cove Obsidian AKA: Knight Inlet Obsidian				Black	British Columbia
Glen Fraser Chalcedony				Colors of white, pink, or purple.	British Columbia
Graham Island Obsidian AKA: Queen Charlotte Islands Obsidian				Black	British Columbia
Grasshopper Flat Obsidian				Banded milky gray	California
Grassy Mountain Petrified Wood				Colors of tan, brown, red blue and white with wood grain and rings commonly present.	Oregon
Graveyard Point Plume Agate				Plume agate with colors of red, yellow, and brown with a matrix of white to a bluish or grayish white.	Idaho, Oregon
Gregory Creek Obsidian AKA: Jonesboro, Sugar Butte Obsidian				Black	Oregon
Guyer Creek Obsidian				Black	Oregon
Hager Mountain Obsidian AKA: Auger Creek Obsidian				Brittle grainy black	Oregon
Hampton Butte Jasper				Layered with colors of tans, reds, browns, and light bluish greens.	Oregon
Hampton Butte Petrified Wood				Shades of light to dark bluish green, gray, tans, yellows, reds, and white.	Oregon
Hampton Butte Obsidian				Black with a sheen of blue and green occurring	Oregon
Harney Lake Chert AKA: Malheur Chert, Mud Lake Chert				Brownish red	Oregon	Harney Formation
Harris Flats Obsidian				Ranges from a bluish gray with reddish brown and black streaking to a translucent black.	California
Hart Mountain Jasper				Colors of light to medium greenish gray, shades of pink to red, tannish or golden yellow to orange.	Oregon
Hart Mountain Obsidian AKA: Deer Creek Obsidian				Black	Oregon
Hat Creek Valley Jasper / Jasper Agate				Shades of brown and commonly has bluish translucent chalcedony present.	British Columbia
Hawks Valley Obsidian				Black	Oregon, Nevada
Hell's Canyon Agate / Petrified Wood AKA: Herringbone				Agate has colors of brown, blue, gray, and green. Hells Canyon Petrified Wood is a light tan with darker brown wood grain or rings.	Idaho, Oregon
Hidden Valley Jasper				Shades of red, brownish yellow, and white	Idaho, Oregon
Holley (Holly) Blue Agate AKA: Ames Creek, Calapoola Purple, Sweet Home Agate				Varying shades of blue, light shades of purple or lavender may be seen.	Oregon
Holleywood Ranch Petrified Wood				Shades of tans, browns, and black with wood rings and grain present.	Oregon
HooDoo Mountain Obsidian AKA: Airdrop Lake Obsidian					Yukon
Hoodoo Quartzite				White	Idaho	Prichard Formation
Horse Heaven Hills Wood				Shades of white, tans, and browns with wood grain and rings present.	Oregon
Horse Mountain Obsidian AKA: Alkali Lake Obsidian, Poverty Basin Obsidian				Black	Oregon
Hosko Obsidian AKA: Brooks Park, Brooks Memorial State Park Obsidian				Black	Washington
Hozomeen Chert / Jasper				Commonly as banded, mottled but solid colors do occur ranging from dark gray to black, light gray to light bluish-gray or medium gray, pink, and white.	Washington, British Columbia	Hozomeen Series
Hozomeen Jasper				Ranges from red to shades of reddish brown with white quartz veins forming a crisscross pattern.	Washington, British Columbia	Hozomeen Series
Ilgachuz Obsidian AKA: Far Mountain Obsidian				Black with a greenish tint	British Columbia
Independence Chert				Ranges from a dark gray to black and commonly has red or rusty staining.	British Columbia, Washington	Independence Formation
Indian Creek Obsidian AKA: Dooly Mountain Obsidian, Wallowa Obsidian				Black	Oregon
Indian Rock Obsidian				Black	Washington
Inman Creek Obsidian See list				Black	Oregon
Interlake Obsidian				Medium gray to black	Oregon
Jess Valley Obsidian				Black	California
Junction Obsidian				Black to pinkish black	California
Juniper Butte Plume Agate				Has brushes and plumes of black, brown, and red.	Oregon
Kedahda Chert				Ranges from a medium to dark gray to green or white. Ribbon chert also occurs.	Yukon, British Columbia	Kedahda Formation of the Cache Creek Group
Kingcome Obsidian AKA: Port Hardy Obsidian				Ranges from black to a dark gray and commonly has small phenocrysts present (snowflake obsidian)	British Columbia
Kootenai Argillite AKA: Kootenay Argillite, Kootenie Argillite				Ranges from a light green to a light gray	Alberta, Montana, Idaho, British Columbia	Kootenai Formation
Kuiu Agate				Deep blue color reaching the color of lapis lazuli shades	Alaska
Kuiu Island Petrified Wood AKA: Port Camden - Keku Strait Petrified Wood					Alaska
Lake Corral Obsidian				Black	Washington
Little Garden Obsidian				Black	Oregon
Llao Obsidian				Black with reddish brown or a chocolate brown streaking and banding commonly occurring	Oregon
Lodgepole Obsidian				Ranges from black to black with reddish brown streaking and large patches (mahogany obsidian).	California
Lone Cabin Creek Jasper				Includes a blue orbicular variety	British Columbia
Lost Iron Wells Obsidian AKA: Glittering Mountain Obsidian				Ranges from gray to black with broad banding and streaking present.	California
Lowell Vitrophyre AKA: Upper Winberry Creek Vitrophyre				Obsidian like glossy black	Oregon
Lower Salmon Creek Chalcedony				Grayish white	Idaho
Lucky Strike Agate				Matrix that ranges from a translucent white to light gray or brown with inclusion of white, pink, yellow, black, and green.	Oregon
Mackenzie Pass Obsidian AKA: Tsirsiutl Peak Obsidian				Black	British Columbia
Mann Creek Petrified Wood				Primarily red.	Idaho
Marston Jasper AKA: Christmas Agate				Brecciated or mottled with colors of red, green, yellow, and white.	Oregon
Marston Petrified Wood				Jasper replaced wood with colors of red, yellow, brown and white. Wood grain and partial rings are present.	Oregon
Massacre Lake / Guano Valley Obsidian AKA: See list				Black	Nevada, Oregon
Maury Mountain Moss Agate / Jasper				Translucent grayish white matrix with very dense dendritic inclusion of green to brown, yellow, or rarely red.	Oregon
McComb Butte Obsidian				Black	Oregon
McDermitt Jasper AKA: Gary Green Jasper				Scenic jasper with shades of blue, brown and white	Oregon, Nevada
McDermitt Petrified Wood				Shades of dark brown with a white cortex. Wood grains and rings are present.	Oregon, Nevada
McGlashan Lake Petrified Wood				Shades of tan, brown, cream, and black, wood grain and rings are present along with voids filled with quartz.	British Columbia
McKay Butte Obsidian				Dark bluish gray with streaking commonly occurring.	Oregon
Middle Fork Obsidian				Black	California
Missing Link Mountain Quartzite					British Columbia, Alberta
Mohawk Jasper				Primarily green with shades of red, yellow, and white commonly present.	Oregon
Monte Lake Moss Agate					British Columbia
Montgomery Chert				.Black	California	Montgomery Limestone Formation
Morrisonite AKA: Morrison Jasper, Carrisite Jasper				Commonly brecciated with colors of green, red, yellow, blue, white, and black.	Oregon
Mount Christie Chert				Ranges from a pale green to a bluish gray or gray weathering to an orangish gray.	Yukon, Northwest Territories, British Columbia	Mount Christie Formation
Mount Edgecumbe Obsidian				Ranges from a dark gray to black. A glassy black dactite with reddish brown and flow banding also occurs.	Alaska	Mount Edgecumbe Volcanics
Mount Edziza Obsidian				Black with banding occasionally present.	British Columbia
Mount Ida Agate				Pink	British Columbia
Mount Rath Jasper				Red	British Columbai	Kedahda Formation of the Cache Creek Group
Nch'kay Obsidian AKA: Mount Garibaldi Obsidian				Ranges from a medium to dark gray	British Columbia
Nechako River Jasper Agate				Brown with translucent bluish chalcedony.	British Columbia
Nicoamen River Agate				Bluish gray banded agate	British Columbia
Negro Rock Petrified Wood					Oregon
Newberry Obsidian				Ranges from a dark gray to black with banding and phenocysts and small gains of magnetite, felspar, and microliotes occurring.	Oregon
Nonda Chert				Ranges from a dark gray to black	Yukon, British Columbia	Nonda Formation
North Cottonwood Flat Obsidian				Ranges from black to a pinkish black	California
Northeastern Petrified Wood AKA: Bison Peak, Barronette Peak, Mount Hornaday Petrified Wood				Ranges from reds to yellows with inclusions of milky white. "wood grain" and rings with a cortex ranges chalky whites to pale yellows.	Wyoming, Montana (Northeastern Region of Yellowstone)	Lamar Formation
Northern Quartzite AKA: Alta Quartzite, Polar Quartzite				Ranges from a honey brown to a slightly pale purplish gray color.	Alberta, British Columbia
Obsidian AKA: Volcanic Glass				Black to black with bands of dark reds (mahogany obsidian) or white flakes (snowflake obsidian)	Western North America	Volcanic
Obsidian Cliffs Obsidian AKA: North Sisters, Obsidian Ridge, Three Sisters Obsidian				Ranges from a pale gray to black	Oregon
Ochoco Agate				Light pea green to olive green matrix with darker inclusions.	Oregon
Ochoco Carnilian				Ranges from pink to dark red	Oregon
Ochoco Chalcedony				White tubes and eyes in a clear to gray chalcedony matrix	Oregon
Ochoco Brilliant Jasper				Ranges in shades of red, yellow, and brown with a brilliant luster.	Oregon
Omineca Agate AKA: Francois Lake Agate				Banded and ranges from a red, crimson, and pink	British Columbia
Opal Butte Jasper				Shades of yellow, browns, and reds and commonly had seams and inclusions of translucent gray chalcedony.	Oregon
.Owyhee Jasper AKA: Antelope Jasper				Scenic jasper with colors of brown, tan and cream. Colors of reds, blues, and greens may also occur	Oregon, Idaho
Owyhee Obsidian AKA: Brown's Castle Obsidian, Oreana Obsidian, Toy Pass Obsidian				Primarily black reddish brown patches and streaking may occur	Oregon, Idaho
Paiute Moss Agate				Black and white to light yellow dendritic inclusions in a matrix that is nearly opaque.	Oregon
Palomino Picture Jasper				Colors of brown, cream, and tan with sky blue inclusions. Reds may occur.	Oregon
Paradise Ridge Obsidian Tuscan Volcanic Group				Black	California	Tuscan Volcanics
Paulina Lake Obsidian				Black with banding commonly occurring.	Oregon
Paulina Peak Obsidian				Almost colorless with very small microlites.	Oregon
Paynes - Inks Creek Obsidian Tuscan Volcanic Group				Black	California	Tuscan Volcanics
Peshastin Chert				Black	Washington	Peshastin Formation
Petrified Wood AKA: Agatized Wood, Opalized Wood				Vary in color based on the minerals present during the process	Washington, Idaho, Washington, British Columbia	Varies
Pevlik Volcano Petrified Wood					Alaska	Chignik Formation
Pinaus Lake Jasper				Ranges from brown to black with shades of yellow and green.	British Columbia
Pink Lady Obsidian				Ranges from black to a iridescent silver sheen to a green sheen or pink sheen.	California
Pisolite					British Columbia
Polka Dot Agate				Matrix white to blue and light beige to brown with spherical inclusions of white, red, orange, brown, or black.	Oregon
Potato Hill Jasper				Homogenous yellow color, no banding or patterns	Idaho
Powell Butte Agate				Clear to red or yellow translucent matrix with black or black to yellow plumes.	Oregon
Priday Agate				Matrix white to blue or light beige with patches of brown and dendritic plumes and moss occurring	Oregon	John Day Formation
Princeton Chert AKA: Allenby Formation Chert					Washington, British Columbia	Allenby Formation
Princeton Jasper				Agatized bog with colors of brownish reds and greys with chalcedony inclusions occurring.	British Columbia
Prophet Chert				Ranges from a dark gray to black spiculitic to radiolarian chert.	British Columbia, Yukon, Northwest Territories.	Prophet Formation
Purcell Siliceous Siltstone				Ranges from a khaki green to brown, gray or bluish gray with a rusty weathering common.	British Columbia, Idaho, Montana	Belt Series
Quartz Mountain Obsidian				Multi-colored	Oregon
Queenstone Jasper AKA: Succor Creek Picture Jasper				Variegated with colors of blue, yellow, brown green and pink.	Idaho
Radar Hill / Skull Creek Obsidian				Ranges from a pale green to black with colors of smoky gray, turquoise, silver, orange, blue, and red occurring.	Oregon
Rainbow Mine Obsidian				Black with a pink translucence with a reddish orange cortex.	California
Red Deer Siltstone AKA: Paskapoo Chert				Ranges from a dark red to tan color with white macrofossil inclusions.	Alberta	Paskapoo Formation
Red Switchback Obsidian				Colors of black and reddish brown or red.	California
Rhyolite				Gray to grayish black, flow banding may be present alternating from light to darker gray	North America	Volcanic Activity
Riley Obsidian				Black	Oregon
Rock Mesa Obsidian AKA: South Sisters Obsidian				Black	Oregon
Robbins Creek Agate				Includes banded and iris agates	British Columbia
Rocky Butte Jasper				Shades of brown, tans, pink, yellow, blue, and green	Oregon, Washington
Rogers Mountain Petrified Wood				Outer cortex of white with white to tan along the outer edges and a darker center ranging from gray to black. Wood grain and rings are present.	Oregon
Roosevelt Petrified Wood				White outer cortex with shades of white, tan and brown. Wood rings and grains are present.	Washington, Oregon
Saddle Mountain Petrified Wood AKA: Lower Crab Creek Petrified Wood				Shades of white, tan, brown and may have colors of a sky blue to a deep blue color. Rings and wood grain may be present.	Washington	Frenchman Springs Member Basalt Formation.
Salmon River Moss Agate				Green moss agate	British Columbia
Schadler Ditch Obsidian AKA: Eightmile Creek Obsidian				Black	California
Scottie Creek Agate				Banded agate	British Columbia
Sentinel Mountain Chert				Ranges from a lavender to purple.	British Columbia
Sentinel Mountain Jasper				Red	British Columbia
Shasta Valley Agate				Ranges from a pure milky white to a rich cream color	Oregon
Sheep Creek Moss Agate				Opaque white matrix with dendritic inclusions and plumes.	Oregon
Silver Lake / Sycan Marsh Obsidian AKA: Carlon Ranch, Long Creek Obsidian				Two types, the first is a glossy black and the other is a rough tar-like luster gray to black.	Oregon
Shoemaker Chert				Light colored buff, pink, gray and green.	British Columbia, Washington	Shoemaker Formation
Skaggs Green Jasper				Ranges from a bluish green to green	Oregon
Skolai Pass Obsidian					Alaska
Sloko Lake Chalcedony				Ranges from white to a whitish gray	British Columbia
Spodue Mountain Obsidian' AKA: Black Hills, West Horton Obsidian				Ranges from black to a purplish black and black with reddish brown streaking (mahogany obsidian).	Oregon
Springbrook Chert				Dark gray to black	British Columbia, Washington	Springbrook Formation
Spring Mountain Jasper				Colors of brown, yellowish brown, blue and green and commonly has scenic patterns or color illustrations.	Oregon, Idaho
Spotted Ridge Chert				Radiolarian chert with colors of black, green, and red.	Oregon	Spotted Ridge Formation
Squaw Butte Obsidian				Black	Oregon
Squaw Creek Opal				Ranges in color from cherry red to salmon pink.	Idaho
Squaw Creek Petrified Wood AKA: Badger Pocket Petrified Wood				Shaded of tan and browns, less commonly shades of blue with wood grain and rings commonly present	Washington	Columbia River Basalts
Squaw Ridge Obsidian AKA: Button Springs, Fort Rock, Hooda Ridge Obsidian				Black with closely spaced sperulites	Oregon
Squilax Mountain Agate				Blue with banding and plumes commonly present	British Columbia
Status Creek Obsidian				Black	Washington
Stinkingwater Agate				Transparent white to bluish white matrix with darker colored plumes.	Oregon
Stinkingwater Jasper				Shades of yellow, orange, red, and green.	Oregon
Stinkingwater Petrified Wood				Primarily Golden Oak and has a lighter cortex and edges with shades of white tan and brown in the interior. Wood rings and grain is present.	Oregon
Succor Creek Agate				Transparent white to bluish white matrix with darker colors of red, brown and black occurring towards the exterior.	Oregon, Idaho
Succor Creek Jasper AKA: Qwyhee Jasper				Scenic jasper with colors of tan, brown and blue	Oregon, Idaho
Suemez Island Obsidian AKA: Cape Felix Obsidian					Alaska
Sugar Hill Obsidian AKA: Sugar Hill Switchback Obsidian				Only black occurs	California
Sunflower Flat Agate AKA: Sunset Agate / Jasper				Red and yellow jasper agate. Commonly has a translucent matrix with yellow, brown, or red streaks with yellow splotches.	Oregon
Sunnyside Petrified Wood AKA: Rattlesnake Hills Petrified Wood				White cortex with shades of white, tan, brown, gray, and black in the interior.	Washington
Surveyor Springs Obsidian AKA: Rock Creek, Twelvemile Canyon Obsidian				Black to a pinkish black	Oregon, Nevada, California
Swartz Canyon Petrified Wood				White cortex with shades of white, tan, brown, gray, and black in the interior. Wood grain and rings are present.	Oregon
Swauger Quartzite				Ranges from purple or lavender to almost pure white.	Idaho	Belt Series
Tahoma Agate				Shades of white, tan and brown.	Washington
Tamihy Quartzite				Ranges from dark charcoal gray to black.	Washington, British Columbia
Tchesinkut Lake Agate				Blue	British Columbia
Tertiary Hills Clinker AKA: Tertiary Hills Welded Tuff, Keele River Obsidian				Ranges in color from white to grey, lower quality light brown, red, and purple are seen.	Alberta, British Columbia, Yukon, Northwest Territories
Timber Butte Obsidian AKA: Squaw Butte Obsidian, Webb Creek Obsidian				Black	Idaho
Top of the World Chert AKA: Beaverfoot Chert				Mottled or irregular banding ranging from white to light or medium gray with dendritic inclusions being present. .	Idaho	Beaverfoot Formation
Tourmaline					British Columbia, Alberta
Tranquille Creek Agate				Includes plume, banded, and fortification agate	British Columbia
Trinidad Jasper				Brecciated with shades of red, green and white.	California
Tucker Hill Obsidian				Ranges from a black to a scare bluish gray with white phenocrysts inclusions.	Oregon
Tuff AKA: Solidified Volcanic Ash				Contains greater than 75 volcanic ash and ranges from white to tan, gray or pink.	North America	Volcanic activity
Tuledad Agate				Multi-colored agate with colors of green, cream, white, brown, and red ranging to a flame agate.	California
Tuscan Obsidian (Paradise Ridge) AKA: Paynes Creek, Inks Creek Obsidian				Black	California
Upper Ross Creek Obsidian				Black with a pink translucence	California
Vantage Petrified Wood AKA: Ginko Petrified Wood, Whiskey Dick Petrified Wood				Shaded of tan and browns with wood grain and rings commonly present.	Washington	Wanapum Basalt Formation
Venator Obsidian AKA: Horseshoe Bend, Shumway Ridge Obsidian				Black	Oregon
Wagontire Obsidian				Black	Oregon
Wascoite Jasper AKA: Bedded Japser, Wasco Lake Bed Agate				Mottled or banded yellow, pinks, brown and white, concentric red banding may be present.	Oregon
Wasco Agate				Colors of tan, white, and red.	Oregon
Whitehorse Obsidian				Ranges from black to gray or with a brownish green tint.	Oregon
Whitesail Agate				Moss and plume agate with onyx banding	British Columbia
Whiteman Creek Jasper				Red	British Columbia
Whitewater Ridge Obsidian AKA: Bear Valley, Foster Springs, Little Bear Creek Obsidian				Black	Oregon
Wiki Peak Obsidian				Black	Alaska
Wildhorse Jasper				Scenic jasper with colors of brown, tan, and blue.	Idaho, Oregon
Willow Creek Jasper				Colors of purple, pink and green with clear or white veins.	Idaho
Winter Ridge Obsidian AKA: White Rock Obsidian				Black	Oregon
Witham Creek Obsidian AKA: School Creek Obsidian				Black	Oregon
Wrangell Obsidian AKA: Wrangell Mountain Obsidian, Group A Obsidian				Black	Alaska
Yakima Canyon Petrified Wood				White chalky cortex with shades of browns, tans, and whites. Wood grain and rings are commonly present	Washington	Grande Ronde Basalts
Yakima Ridge Petrified Wood				White chalky cortex with shades of browns, tans, and whites. Wood grain and rings are commonly present	Washington	Frenchman Springs Member of the Wanapum Basalt Formation
Yalakom River Jasper				Banded jasper	British Columbia
Yamsay Obsidian				Black with faint banding	Oregon
Yellow Lake Agate				Bluish gray	British Columbia
Yellowjacket Obsidian				Gray / black banded obsidian with clear streaking	California
Yreka Butte Obsidian				Black	Oregon