Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated             Formation / Member
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.	Idaho
Alder Creek Jasper				Ranges from red to yellow	East central Idaho
American Falls Obsidian AKA: Snake River Obsidian, Walcott Obsidian				Black, reddish brown streaking and patches may be present (mahogany obsidian).	Southeastern Idaho
Andesite Generic Type					Idaho	Varies
Avon Chert AKA: Avon Valley Porcellanite				Porcelain white with brown chalcedony inclusions	Northeastern Idaho
Basalt				Ranges from black to gray	Idaho	Volcanic
Beacon Hill Moss Agate AKA: Hog Creek Agate, Idaho Potato Agate				White to light gray to bluish gray matrix with dendritic or sagenitic inclusions.	West central Idaho
Bear Gulch Obsidian AKA: See page for list of names				Black	Southeastern Idaho
Belt Argillite				Ranges from a medium gray to a greenish gray with casts commonly present.	East central Idaho	Belt Supergroup
Big Southern Butte Obsidian AKA: Webb Springs Obsidian				Black	Southeastern Idaho
Blackjack Basalt				Dark gray when freshly fractured weathering black, brown, and red.	West central Idaho	Blackjack Basalt Member of the Payette Formation
Bonner Quartzite				Ranges from most commonly pinkish gray to pale red.  Less commonly reddish gray to red or greenish gray.	East central Idaho	Bonner Quartzite member of the McNamara Formation, Missoula Group
Browns Bench Obsidian AKA: Goose Creek, Hudson Ridge, Jackpot Obsidian				Black	South central Idaho
Bruneau Canyon Jasper				Ranges in color from varying shades or tan and browns to reds and greens with cream colored eye or egg patterns.	Southwestern Idaho
Cannonball Mountain Obsidian				Black	Central Idaho
Cataldo Quartzite				Lilac color when freshly fractures and oxidizes to a light gray.	Northwestern Idaho	Cataldo Member of the Belt Series
Carnelian Generic Type				Translucent and varies in shades from reddish brown to reddish orange.	Idaho	Varies
Challis Chancedony				Ranges from gray to a bluish gray or white.	Central Idaho
Chesterfield Obsidian AKA: Smith Creek Obsidian				Black	Southeastern Idaho
Conant Creek Obsidian AKA: Buggy Springs Obsidian				Black	Southeastern Idaho
Creston Quartzite				Ranges from a pale green to a bluish grey or maroon	Northeastern Idaho	Creston Formation
Cripple Creek Jasper				Shades of predominately browns with whites and light greenish gray commonly forming hills and valleys with a greenish gray sky	East central Idaho
Dacite Generic Type				Most commonly a light to dark gray or black	Idaho	Varies
Deadman Chert				Ranges from gray to a greenish gray	Southeastern Idaho	Deadman Limestone Formation
Eastern Petrified Wood AKA: Lake Butte Petrified Wood				Ranges from reds to yellows with inclusions of milky white with wood grain" and rings present	East central Idaho	Langford Formation
Elk Creek Basalt				Ranges from a dark gray to black	East central Idaho	Elk Creek Basalt Member, Washburn Group, Absaroka Supervolcanic
Fish Haven Chert				Ranges from a grayish tan to black weathering shades of brown.	Southeastern Idaho	Fish Haven Dolomite Formation
Flathead Quartzite AKA: Alpreston Quartzite				Ranges light reddish to an orangish red.	East central Idaho	Flathead Quartzite Formation
Fryite Jasper				Shades of tans, grays, and blues.	Northwestern Idaho
Gallatin Petrified Forest Wood AKA: Specimen Ridge, Bighorn Peak Petrified Wood				Ranges from reds to yellows with inclusions of milky white.  "Wood grain" and rings are present in the material.	East central Idaho	Sepulcher Formation
Garden City Chert				Ranges from a light to dark grayish blue.  Black layers of chert also occur.	Southern Idaho	Garden City Limestone Formation
Graveyard Point Plume Agate				Plume agate with colors of red, yellow, and brown with a matrix of white to a bluish or grayish white.	Southwestern Idaho
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.	West central Idaho
Hidden Valley Jasper				Shades of red, brownish yellow, and white	Southwestern Idaho
Hoodoo Quartzite				White	Southwestern Idaho	Prichard Formation
Kelly Canyon Obsidian AKA: Kelley Canyon, Kelley's Canyon Obsidian				Black	Southeastern Idaho
Kootenai Argillite AKA: Kootenay Argillite, Kootenie Argillite				Ranges from a light green to a light gray	Northern Idaho	Kootenai Formation
Laketown Chert				Light gray	Southeastern Idaho	Laketown Dolomite Member of the Guilmette Formation
Lamar Valley Petrified Wood AKA: Amethyst, Mountian, Specimen, Fossil Forest				Ranges from reds to yellows with milky white wood grain, rings are present, outer cortex ranges from chalky whites to pale yellows.	East central Idaho	Lamar Formation
Malad Obsidian AKA: Dair Creek, Garden Creek Gap, Hawkins, Oneida, Wright Creek Obsidian				Most commonly black, but brownish red mahogany obsidian also occurs.	Southeastern Idaho
Mann Creek Petrified Wood				Primarily red.	West central Idaho
McNamara Argillite				Red and green	East central Idaho	McNamara Formation
Muldoon Moss Agate				Ranges from a light gray with a light green mossy inclusions.	Central Idaho
Murphy Hot Springs Obsidian AKA: Murphy Springs Obsidian				Black	Southwestern Idaho
Obsidian AKA: Volcanic Glass				Black to black with bands of dark reds (mahogany obsidian) or white flakes (snowflake obsidian)	Idaho	Volcanic
.Owyhee Jasper AKA: Antelope Jasper				Scenic jasper with colors of brown, tan and cream.  Colors of reds, blues, and greens may also occur	Southwestern Idaho
Owyhee Obsidian AKA: Brown's Castle Obsidian, Oreana Obsidian, Toy Pass Obsidian				Primarily black reddish brown patches and streaking may occur	Southwestern Idaho
Packsaddle Creek Obsidian AKA: Pack Saddle Obsidian				Black	East central Idaho
Petrified Wood AKA: Agatized Wood, Opalized Wood				Vary in color based on the minerals present during the process	Idaho	Varies
Phosphoria Chert AKA: Tosi Chert, Big Horn Chert				Ranges from colors of red, maroon, purple, orangish red, green, black and white.	Southeastern Idaho	Tosi Member of the Phosphoria Formation
Pilcher Quartzite				Ranges from a pale orangish pink to a moderate red.	Northeastern Idaho	Pilcher Creek Formation of the Missoula Group
Poison Creek Agate				Green agate to clear agate with green inclusions	East central Idaho
Porcellanite Generic type				Ranges from white to brown or various shades of gray	East central Idaho	Varies
Portneuf Chert					Southeastern Idaho	Portneuf Limestone Formation of the Thaynes Group
Potato Hill Jasper				Homogenous yellow color, no banding or patterns	Northwestern Idaho
Purcell Siliceous Siltstone				Ranges from a khaki green to brown, gray or bluish gray with a rusty weathering common.	Northern Idaho	Belt Series
Queenstone Jasper AKA: Succor Creek Picture Jasper				Variegated with colors of blue, yellow, brown green and pink.	Southwestern Idaho
Rex Chert				Ranges from a brownish red to purple or an ashy gray to black	Southeastern Idaho	Rex Chert Member,  Phosphoria Limestone Formation
Rhyolite				Gray to grayish black, flow banding may be present alternating from light to darker gray	Idaho	Volcanic Activity
Road Creek Agate				A matrix that ranges from ranges in color from white to gray and bluish gray.  Sagenite inclusions, aragonitte fans and calcite pseudomorphs may occur.	Central Idaho
Rooney Chert				Ranges from white to a light whitish gray.	East central Idaho	Rooney Chert Member, Madison Limestone Formation
Spring Mountain Jasper				Colors of brown, yellowish brown, blue and green and commonly has scenic patterns or color illustrations.	Southwestern Idaho
Squaw Creek Opal				Ranges in color from cherry red to salmon pink.	Idaho
Succor Creek Agate				Transparent white to bluish white matrix with darker colors of red, brown and black occurring towards the exterior.	Southwestern Idaho
Succor Creek Jasper AKA: Qwyhee Jasper				Scenic jasper with colors of tan, brown and blue	Southwestern Idaho
Swan Peak Quartzite				Ranges from white to gray	Southern Idaho	Swan Peak Formation
Swauger Quartzite				Ranges from purple or lavender to almost pure white.	East central Idaho	Belt Series
Timber Butte Obsidian AKA: Squaw Butte Obsidian, Webb Creek Obsidian				Black	West central Idaho
Tower Region Petrified Wood AKA: Yancy's Forest, Roosevelt Lodge Petrified Wood				Ranges from reds to yellows with inclusions of milky white.  "Wood grain" and rings are present in the material.	East central Idaho	Lamar Formation
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. .	Northern Idaho	Beaverfoot Formation
Tuff AKA: Solidified Volcanic Ash				Contains greater than 75 volcanic ash and ranges from white to tan, gray or pink.	Idaho	Volcanic activity
Upper Lamar Petrified Wood AKA: Miller Creek, Cache Creek, Cache Mountain, Abiathar Peak, The Thunderer Petrified Wood				Ranges from reds to yellows with inclusions of milky white.  "Wood grain" and rings are present in the material.	East central Idaho	Lamar Formation
Van Duzer Chert				Ranges from a light gray to a dark gray or black.	Southwestern Idaho	Van Duzer Limestone Formation
Wedge Butte Obsidian				Black, commonly with pyroclastic inclusions (snowflake obsidian)	Central Idaho
Wildhorse Jasper				Scenic jasper with colors of brown, tan, and blue.	West central Idaho
Willow Creek Jasper				Colors of purple, pink and green with clear or white veins.	West central Idaho