Eastern Seaboard Region Licthic Materials

Materials Identification Guide

Eastern Seaboard Region Lithic Material

Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated Formation / Member
Aaron Slate AKA: Sandy Tuff				Ranges from a pure greenstone to a almost pure argillite	North Carolina, Virginia	Aaron Formation of the Virginia Carolina Slate Belt
Abbyville Gabbro				Dark greenish gray	Virginia, North Carolina	Abbyville Gabbro Formation
Accomack Mudstone				Ranges in color from a light or medium brown to a yellowish mustard brown.	Virginia, Maryland, Delaware	Yorktown and Omar formation estuarine deposits
Allendale Chert (Coastal Chert)				Primarily tan to brown in various shades of "earth tones".	Georgia, South Carolina
Allentown Chert				Ranges from a medium to dark gray with white streamers with banding commonly present. Oolitic and stromatolitic.	West Virginia, Maryland, Pennsylvania, New York, Vermont, Connecticut	Allentown Formation
Allentown Quartzite				Ranges from a very light gray to a medium light gray.	West Virginia, Maryland, Pennsylvania, New York, Vermont, Connecticut	Allentown Formation
Alsen Chert				Mottled dark gray to a dark brownish gray.	New York, Maryland, New Jersey, Pennsylvania, Virginia, West Virginia, Vermont, Massachusetts, Connecticut	Alsen Cherty Limestone Formation of the Helderberg Group
Amber Chalcedony AKA: Weathering Amber Chalcedony				When freshly fractured is a translucent amber with snowflake like inclusions, when weathered has a chalky white to yellow appearance	Virginia, North Carolina
Antietam Quartzite AKA: Erwin-Antietam Quartzite				Ranges from bright white to light gray, tan, brown, pink, or red, a greenish brown variation is reported	West Virginia, Virginia, Delaware, Maryland, Pennsylvania,	Antietam Formation of the Chilhowee Group
Aquia Orthoquartzite				Ranges from white to tan, light gray, or brown. Finer grain can range from tan to brown, gray, yellow, or red.	Delaware, Maryland, Pennsylvania, Delaware	Aquia Quartzite Formation
Argillite (Generic type)				Light to dark green, but may range to various shades of gray.	North America	Varies
Arnolds Valley Jasper AKA: Rockbridge Jasper				Ranges in color from yellow to red with white streaks of quart.	Virginia, West Virginia	Chilhower Group
Arvonia Slate				Ranges from a dark gray to a grayish black.	Virginia	Arvonia Formation
Bangor Chert				Translucent and banded, ranging in color from black to a dark bluish gray or greenish	Tennessee, Georgia, Alabama, Mississippi, North Carolina	Bangor Limestone formation
Beacon Hill Gravel Chert / Quartzite				Nodules of chert and yellow quartzite.	Maryland, New Jersey	Beacon Hill Formation
Beasley Bay Jasper				Ranges from a mustard yellow to a brownish yellow or red.	Virginia, Maryland, Delaware	Kent Island Formation
Becraft Chert				Light bluish gray to medium gray or black	New York, New Jersey, Maryland, and Virginia	Becraft Limestone Formation of the Helderberg Group
Beekmantown Chert AKA: Narrows Chert				Dark gray often fossiliferous.	West Virginia, Virginia, Maryland, Pennsylvania	Beekmantown Formation
Bellefonte Chert				Ranges from a light to medium gray	Pennsylvania, Maryland, West Virginia, Virginia	Bellefonte Dolomite Formation of the Beekmantown Group.
Bellvache Creek Petrified Wood					South Carolina
Berea Sandstone				Ranges in color from a light gray to a buff	Ohio, Michigan, Pennsylvania, West Virginia, and Kentucky	Waverly Group
Black Mingo Chert				Mottled white, light tan, and gray.	South Carolina, Georgia	Lang Syne Formation of the Black Mingo Group
Boggs Chert AKA: Blunt Run Chert				Ranges in color from a dark gray to black with numerous white or light colored speckles from fossils	Ohio, Pennsylvania, West Virginia	Boggs Member of the Pottsville Formation
Bonifant Jasper AKA: Bonnefont Jasper				Mottled mustard yellow to a yellowish brown or a variegated red	Virginia	porphyoblastic garnet-biotite gneiss formation
Bourne Chert AKA: Brunswick County Chert				Predominantly brown to cream, red, or violet, but ranges from pink, yellow, brown, orange, and light blue also occur.	Virginia
Brandywine Blue Gneiss AKA: Wilmington Blue Rock				Ranges from a bright blue to a bluish gray.	Delaware, New Jersey, Pennsylvania, Maryland	Brandywine Blue Gneiss Formation of the Wilmington Complex
Breathitt Chert				Range from a dark chocolate brown to a black or from shades of brownish green to tan with tan or yellow inclusions are often present.	Kentucky West Virginia	Breathitt Formation
Breccia Quartzite					West Virginia
Brier Creek Chert AKA: Stoney Bluff Chert, Red Bluff Chert				Ranges in color from white to cream, tan, and gray with mottling commonly present.	Georgia, South Carolina	Possible Suwannee Limestone Formation
Bremo Quartzite				Light gray	Virginia	Bremo Quartzite Member of the Arvonia Formation
Broad Run Chalcedony AKA: Wissahickon Chalcedony				Ranges in color from a mottled white to light gray or cream to yellow. Black specks are present through the material.	Virginia, Delaware, Maryland	Wissahickon Formation
Brook Run Jasper				Ranges from a mustard yellow to a yellowish brown or red with white quartz streaks running through the material.	Virginia
Brush Creek Chert AKA: Crooksville Chert, Hughes River Chert				Varies in color from a tan to a brown olive or light green	Ohio, Pennsylvania, West Virginia, and Kentucky	Brush Creek Limestone Formation, Conemaugh Group
Buffards Quartzite				Ranges from a milky white quartz to a dusty red quartzite.	Virginia	Buffards Quartzite Member of the Arvonia Formation
Calvert Silicified Sandstone				Ranges from a light gray to a bluish gray or dark gray	Virginia, Maryland, Delaware	Calvert Formation, Chesapeake Group
Cambridge Chert				Gray colored chert	Ohio, West Virginia, Kentucky	Cambridge Member of the Conemaugh Formation
Cannel Coal				Ranges from dark gray to black	Kentucky, Pennsylvania, West Virginia, Texas, and Nova Scotia.
Catoctin Greenstone AKA: Catoctin Metabasalt				Ranges from a green to a greenish gray or gray.	Virginia, West Virginia, Maryland, Pennsylvania, Delaware	Catoctin Formation
Catoctin Metarhyolite AKA: Highland Metarhyolite				Ranges from a gray to a bluish gray, blue, or purple. Banding, mottling, or breccia with a tannish color may be present.	West Virginia, Virginia, Delaware, Maryland	Catoctin Formation
Cecil Black Chert AKA: Newark Chert				Ranges from a medium gray to black	Delaware, Maryland, Pennsylvania	Newark Gabbro Formation
Chattahoochee Chert (Coastal Chert)				Ranges from brown to a creamy tan with dark gray, black, and bluish white also occurring. Clear chalcedony and mottling occurs.	Georgia, South Carolina	Chattahoochee Limestone Formation
Chepultepec Chert Knox Chert Variant (Ridge and Valley Chert)				Ranges from yellow to white and oolitic	Georgia, North Carolina, South Carolina, Alabama, Tennessee, Virginia, Maryland, West Virginia, Pennsylvania	Chapultepec Member of the Knox Formation
Chickies Quartzite AKA: Chiques Quartzite, Hellam Quartzite, Edge Hill Quartzite				Ranges from white to gray or tinted pink, tan, green, or blue	Pennsylvania, Maryland	Chickies Formation
Chilhowee Mudstone				greenish-gray in color	Alabama, Tennessee, North Carolina, Virginia, and West Virginia.	Chilhowee Group
Cid Meta- Mudstone				Thinly laminated tuffaceous argillite mudstone ranging from a bluish gray to a greenish gray.	North Carolina, South Carolina	Cid Formation of the Albemarle Group
Coeymans Chert AKA: New Creek Chert				ranges in color from a bluish black to black. Cloudy patches of fine pyrite and quartz may be present.	New York, Maryland, New Jersey, Pennsylvania, Virginia, West Virginia, Vermont, Massachusetts, Connecticut	Coeymans Limestone Formation (New Creek Formation), Helderberg Group
Cohansey Orthoquartzite				Base color of grayish white with mottled colors including yellow to brown, orange to red, or black	Maryland, New Jersey	Cohansey Formation
Columbia Formation Quartzite				Ranges from a yellowish brown to a reddish brown.	Delaware, Maryland	Columbia Formation
Conococheague Chert				Ranges from a gray to a bluish gray, brownish gray, or black. Small blue to white inclusions may be present.	Virginia, Tennessee, West Virginia, North Carolina	Conococheague Limestone Formation
Copper Ridge Chert (Ridge and Valley Chert)				Ranges in color from medium to dark gray to black	Georgia, North Carolina, South Carolina, Alabama, Tennessee, Virginia, Maryland, West Virginia, Pennsylvania	Copper Ridge Member of the Knox formation
Crystal Quartz				clear colorless stone similar to clear glass	Eastern North America
Culpepper Hornfels				Range from a brown to reddish brown or greenish brown and gray to black.	Virginia, Maryland
Cuesta Quartzite				Ranges in color from pale grayish brown, pink, or reddish.	Delaware, New Jersey
Erwin Quartzite AKA: Erwin - Antietam Quartzite, Hesse Quartzite				Ranges from bright white to light gray, tan, brown, pink, or red. A green brown variation is reported in Amherst County, Virginia	Tennessee, North Carolina, Virginia, South Carolina	Erwin Formation of the Chilhowee Group
Fishpot Chert				Primarily light to dark brown and gray in color. High quality similar to chalcedony. Light banding with small bluish gray chalcedony inclusions.	Ohio and West Virginia	Fishpot Limestone Member of the Monongahela Formation
Flint Ridge Chert /Chalcedony AKA: Van Port Chert, Raccoon Creek Chert				White to bluish hues with bands of light gray, reds, and yellows	Ohio, Michigan, Ontario, Indiana, Kentucky, West Virginia	Van Port Member of the Allegheny Formation
Flint River Chert AKA: Butterscotch Chert (Coastal Chert)				Ranges from a yellowish brown to a medium brown.	Alabama, Georgia, Florida, South Carolina	Flint River Formation, Vicksburg Group
Flint Run Jasper				Mottled mustard yellow to brown, but gray, red, blue, and green also occur as streaking or inclusions and quartz inclusions.	West Virginia, Virginia, Maryland	Between the Beekmantown Formation and the Blue Ridge Formation
Floyd Church Meta-Argillite / MetaMudstone				Gray	North Carolina	Floyd Church Formation of the Albemarle Group
Fort Chiswell Chalcedony				Mottled with light colors of white tan, and gray.	Virginia
Fort Payne Chert AKA: Iuka Chert, Lauderdale Chert				Ranges in color from black to a grayish blue, or white to a bluish white. Bluish gray is the predominate color with bluish hues	Kentucky, Tennessee, Alabama, Mississippi, Georgia, South Carolina, North Carolina, Virginia, West Virginia	Fort Payne Formation
Georgiates				Translucent olive green.	Georgia, South Carolina	Chesapeake Bay Impact
Greenbrier Chert AKA: Alderson Chert				Ranges in color from light to dark grays, browns, black, and pale red.	West Virginia, Virginia	Greenbrier Formation
Greenfield Chert				Ranges from a light to dark gray with white chalcedony / quartz inclusions..	Ohio, West Virginia, Kentucky	Greenfield formation, Saline Group
Hardy Creek Chert				Ranges from a brown to a gray or an olive black	Virginia, West Virginia, Kentucky, Tennessee	Hardy Creek Limestone Formation
Hardyston Chalcedony				Semi translucent milky white to light blue or light to gray.	Maryland, Pennsylvania, New Jersey, Delaware	Hardyston Formation
Hardyston Jasper AKA: Berks Jasper, Lehigh Jasper, Pennsylvania Jasper				Ranges from a dark golden yellow to a bright red or dark brown with mottling as well as tiny veins of clear to white translucent chalcedony.	Maryland, Pennsylvania, New Jersey, Delaware	Hardyston Formation
Hardyston Quartzite				Ranges from a milky white to light blue to a light yellowish brown or gray.	Maryland, Pennsylvania, New Jersey, Delaware	Hardyston Formation
Harpers Ferry Quartzite AKA: Oolitic Quartzite				Ranges from a light gray to light blue with round speckles colored dark gray to a bluish gray or cream to light gray	Virginia, North Carolina, Maryland	Possible Harpers Formation of the Chilhowee Group
Heath Farm Jasper AKA: Delmarva Peninsula Jasper				Ranges from a brownish to dark brownish black.	Delaware, Maryland, Pennsylvania
Helderberg Chert				Ranges from mottled white to light cream, light gray, and light blue commonly mottled and fossiliferous.	New York, Maryland, New Jersey, Pennsylvania, Virginia, West Virginia, Vermont, Massachusetts, Connecticut	Helderberg Group
Hillsdale Chert				Black weathering gray.	West Virginia, Virginia, Kentucky	Hillsdale Limestone Formation
Honaker Chert / Dolomite AKA: Nolichucky Chert				Dolomite is a light to medium gray with banding present, minor chert nodules of dark gray to black with algal banding	Virginia, Tennessee, North Carolina	Honaker Formation / Nolichucky Formation
Hunterville Chert				Ranges from a yellowish gray to a gray or dark gray.	West Virginia, Virginia	Hunterville Chert Formation of the Oriskany Group
Indian Run Chert				Mottled with shaded of medium to dark gray and white.	Virginia
Iron Hill Jasper AKA: Newark Jasper				Ranges from a mottled mustard yellow to brown, dark brown, brownish black, and red.	Delaware, Maryland, Pennsylvania	Newark Gabbo Formation
Kalkberg Chert				Ranges in color from a grayish blue to a black. This chert is heavily cloudy by opaque patches. Clastic quartz is present	New York, Maryland, New Jersey, Pennsylvania, Virginia, West Virginia, Vermont, Massachusetts, Connecticut	Kalkberg Formation of the Helderberg Group
Kanawha Black Chert				Vary from a black to a bluish black /gray to a dark gray	West Virginia and into Pennsylvania, Virginia, Ohio, Maryland, and Kentucky	Kanawha Formation, Pottsville Group
Kingsport Chert				Ranges from white to a medium to dark gray.	Tennessee, North Carolina, Virginia	Kingsport Formation of the Beekmantown Group
Knox Chert				Dark blue to bluish gray with translucent mottling. Red Knox Chert has a reddish color with slight mottling.	Georgia, North Carolina, South Carolina, Alabama, Tennessee, Virginia, Maryland, West Virginia, Pennsylvania	Knox Formation
Laurel Run Chert				Ranges from a light to dark gray or black with tan, pink, and white also occurring.	Virginia
Lenoir Chert				Dark Gray	Tennessee, Virginia, West Virginia, Kentucky, South Carolina, Georgia, Alabama	Lenoir Limestone Formation
Libertytown Metarhyolite				Ranges from a dark purplish to a bluish black or red with macrophenocycts of pink and white feldspar.	Maryland, Virginia, West Virginia, Pennsylvania	Libertytown Metarhyolite Formation
Licking Creek Chert				Black with sandy texture inclusions.	Pennsylvania, Virginia, Maryland	Licking Creek Member of the Helderberg Formation
Limeport Chert				Ranges from a gray to a bluish gray or black, banding may be present.	Pennsylvania, Maryland, New Jersey	Limeport Member of the Allentown Formation
Lincolnshire Chert AKA: Murat Chert				Ranges from a very dark gray to olive black.	Virginia, Tennessee	Lincolnshire Limestone Formation of the Cliffeld Group
Lisbon Chert AKA: McBean Chert, Silicified Chert Hash (Coastal Chert)				Ranges from red to yellow or cream to blue. Mottling or striping may be present. Jasper and chalcedony also occur in this formation.	Georgia, Alabama, South Carolina	Lisbon Limestone Formation of the Clairbourn Group
Little Cattail Creek Chert / Chalcedony AKA: Williamson Chert, Dinwiddie Chert				The most common colors range from a light tan to brown and gray to blue with a mottled creamy gray-blue being the most common.	North Carolina, Virginia
Little River Metadacite				Opalescence bluish gray quart weathering to a crusty tannish white.	Georgia, South Carolina	Little River Volcanics Series
Liver Jasper				Red liver colored jasper with hematite spherules	Virginia
Longview Chert Knox variation				Primarily reddish, but white to gray colors do occur	Georgia, North Carolina, South Carolina, Alabama, Tennessee, Virginia, Maryland, West Virginia, Pennsylvania	Longview Member of the Knox formation
Lower Mercer Chert				Bluish gray color with quartz inclusions.	Pennsylvania, Ohio, Kentucky, West Virginia	Lower Mercer Member of the Pottsville Formation
Luray Jasper				Maroon red with epidote inclusions	Virginia
Martin Point Jasper				Ranges from a mustard yellow to a yellowish brown or red.	Maryland
Mascot Dolomite / Chert				Ranges from white to a light to medium gray with with mottling or streaking ranging from pink to red or green	Tennessee, Virginia, Kentucky, North Carolina	Mascot Dolomite Formation of the Newala Group
Meadow Mountain Chert				Mottled blue gray with white streaks present.	West Virginia, Maryland	Possible Foreknob Formation
Mitchell Chert				Ranges from white to dark brown with the most common colors being from a light cream to yellow, light gray to blue, and pink to violet.	North Carolina, Virginia
Mogothy Quartzite AKA: Magothy Quartzite				Ranges in color from gray to bluish gray or purple, banding or mottling may be present. Small fossils may give a peppered appearance.	Virginia, Delaware, Maryland	Mogothy Formation
Morrow Mountain Rhyolite AKA: Uwharrie Rhyolite				Homogeneous dark gray to black and many shades of green, flow banding may be present.	South Carolina, North Carolina, Virginia
Mount Rodgers Rhyolite				Ranges in color from a dark white to gray and light pink to purple with banding being present	North Carolina, Virginia	Mount Rodgers Formation
Nethers Chert Flint Ridge Chert variation AKA: Ribbon Chert				Banded with colors ranging from light gray to black, pink to red, or tan to brown	Ohio, Indiana, Kentucky, West Virginia, Pennsylvania, Michigan, Ontario	Van Port Member of the Allegheny Formation
Newman Chert				Ranges in color from yellow to tan, red, and orange	Kentucky, Tennessee, Virginia	Newman Limestone formation
New Market Chert AKA: Row Park Chert				Ranges from a dark gray to black.	Virginia, West Virginia, Pennsylvania, Maryland	New Market Limestone Formation of the St. Paul Group
New Scotland Chert AKA: Corriganville Chert				Ranges from a white to very light colors.	New York, Maryland, New Jersey, Pennsylvania, Virginia, West Virginia, Vermont, Massachusetts, Connecticut	New Scotland Formation (Corriganville Formation) of the Helderberg Group
Nittany Chert				Ranges from a medium to dark gray with siliceous oolites. Red jasper also occurs in this formation.	Pennsylvania, Maryland, Virginia, West Virginia	Nittany Dolomite Formation, Beekmantown Group
Nottoway River Quartzite				Two variations, one is a light blue and the other is a root beer brown.	North Carolina, Virginia
Obryan Chert AKA: Southern Vanport Chert				Ranges in color from a mottled gray to white with calcium carbonate vermiculate lines	Ohio, Kentucky, West Virginia	Obryan Member of the Allegheny Formation
Onodaga Chert AKA: See page				Vary from light to dark gray to a mottled bluish gray to a dark brown or black or tan.	West Virginia, Virginia, Delaware, Maryland (see page for full list)	Onondaga Limestone Formation
Oriskany Solicified Sandstone				White	New York, Pennsylvania, New Jersey, Maryland, West Virginia, Virginia	Oriskany Sandstone Formation
Orthoquartzite (Generic type)				Varies	North America	Varies
Patuxent - Mattaponi Quartzite AKA: Mattaponi Quartzite				Ranges from gray to a white, light yellow, pink or red. range sin color from a dark white to gray, cream to yellow, and pink to red.	West Virginia, Virginia, Maryland, Pennsylvania, North Carolina	Patuxent / Mattaponi Formation
Patton Chert				Ranges from a dark gray to black.	West Virginia, Virginia	Patton Limestone Member of the Greenbrier Limestone Formation
Pinesburg Station Chert				Ranges from a white to very light gray.	West Virginia, Virginia, Maryland, Pennsylvania	Pinesburg Station Formation of the Beekmantown Group
Point of Rocks Jasper				Ranges from a mustard yellow to a yellowish brown with grays also occurring.	Virginia, Maryland
Port Ewen Chert				Ranges in color from a dark gray to black	New York, Maryland, New Jersey, Pennsylvania, Virginia, West Virginia, Vermont, Massachusetts, Connecticut	Port Ewen Formation of the Helderberg Group
Poteet Chert				Ranges from a dark olive gray to olive black.	Virginia, Kentucky, Tennessee	Poteet Limestone Formation
Quartz				Milky white with thin veins	North America
Quartzite				Varies from white to gray, or pink and tan in color	North America
Rhyolite				Gray to grayish black, flow banding may be present alternating from light to darker gray	Eastern North America
Rich Patch Chert				Primarily a light to dark gray, but white to pink, cream, brown and grayish browns occur.	Virginia
Ridgely Quartzite				Ranges from white to a light tan or a medium gray or pink.	West Virginia, Maryland, Virginia	Ridgely Sandstone Member of the Oriskany Formation
Rockdale Run Chert				Ranges from a light to medium gray.	West Virginia, Virginia, Maryland, Pennsylvania	Rockdale Run Limestone Formation of the Beekmantown Group
Rose Hill Quartzite AKA: Ferruginous Quartzite, Hematitic Sandstone				Ranges in color from a brownish purple to a medium purple or a blood red.	West Virginia, Virginia	Rose Hill Formation
Runion Agate				Black to brown plume agate	Virginia
Savannah River Agate				Ranges from a light grayish brown or grayish white to a yellowish brown with vugs and mottling commonly present	Georgia, South Carolina
Shear Zone Chalcedony (Mylonite)				Ranges from a translucent white to yellow, pink, or orange and commonly has inclusions or patches of green or gray.	Virginia
Shady Chert				Ranges from a bluish gray to a yellowish gray blue, or white with mottling commonly present.	Alabama, Georgia, Tennessee, North Carolina, Virginia	Shady Dolomite Formation
Shiver Chert				Ranges in color from a medium gray to black	New York, New Jersey, Maryland, and Virginia	Shiver Formation of the Helderberg Group
Sideling Hill Chert				Ranges from a grayish blue to a medium to dark gray or white. Streaking or banding may be present.	Virginia	Probably New Creek Limestone Formation (Coeymans Formation).
Sinks Grove Chert Greenbreir Chert variation				Black weathering gray.	Virginia	Sinks Grove Limestone Member of the Greenbrier Limestone Formation
Skidmore Island Chert				Homogenous and ranges from a white to a cream or light tan	Virginia	Unknown formation
Spring Branch Rhyolite AKA: Cypress Creek Rhyolite				Light bluish gray but may vary to a tan with abundant small pyrite or feldspar crystals.	South Carolina	Persimmon Fork Formation
Stonehenge Chert AKA: Stonehenge - Chepultepec Chert				Ranges from a dark gray to black.	West Virginia, Virginia, Maryland, Pennsylvania, New Jersey	Stonehenge Limestone Formation of the Beekmantown Group
Sugarloaf Mountain Quartzite				White	Maryland	Sugarloaf Mountain Quartzite Formation
Suwannee Chert (Coastal Chert)				Ranges from brown to a creamy tan with dark gray, black, and bluish white with chalcedony, mottling, or banding may occur.	Georgia, Florida, Alabama, South Carolina	Suwannee Limestone Formation, Vicksburg Group
Ten Mile Creek Chert				Ranges in color from a dark brownish gray to an olive gray or bluish gray.	Ohio, Pennsylvania, West Virginia	Greene Formation
Tomstown Chert				Ranges from beds of bluish gray to a yellowish gray blue, or white with mottling commonly present and nodules of white.	Pennsylvania, Maryland, Virginia, and West Virginia	Tomstown Dolomite Formation
Trading Run Chert				Light color ranging from a mottled white to gray, cream to yellow, and pinks with iron staining commonly present.	West Virginia, Virginia, Maryland	Helderberg Formation
Tuscarora Quartzite AKA: Massanutten Quartzite				White and gray	West Virginia, Maryland, Pennsylvania, Virginia	Tuscarora Quartzite Formation of the Judy Gap Group
Tusquitee Quartzite				Ranges from a white to a light yellowish gray.	North Carolina	Tusquitee Quartzite Member of the Nantahala Formation
Unakite				Mottled green and pink	Tennessee , North Carolina, Virginia, New Jersey
Uniontown Chert AKA: Waynesburg Chert				Ranges from light to medium gray or yellowish brown with yellow streaks.	West Virginia, Maryland	Uniontown Formation of the Monongahela Group.
Virginia Beach Jasper				Ranges from a brownish yellow to a light yellowish tan, gray, or red.	Virginia	Tabb Formation
Waynesboro Chert AKA: Rome Chert				Ranges from a very dark gray to black	Virginia, West Virginia, and Maryland	Waynesboro Limestone Formation (Rome Limestone Formation)
Weverton Quartzite				Feldspathic and ranges from a grayish white to medium light gray.	Maryland, West Virginia, Virginia	Buzzard Knob Member of the Weverton Quartzite Formation, Chilhowee Group
Wissahickon Quartzite / Vein Quartz				gray quartzite with milky white veins of quartz.	Pennsylvania, New Jersey, Maryland, Delaware	Wissahickon Formation
Wolf Den Mountain Rhyolite				Ranges from a medium to dark gray with white speckles.	South Carolina, North Carolina
Woodway Chert				Ranges from a dark gray to olive black.	Virginia	Woodway Limestone Formation
Wyboo Chert				Mottled with colors of white to light tan or yellow.	South Carolina