Materials Identification Guide

North Carolina 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 Northeastern North Carolina Aaron Formation of the Virginia Carolina Slate Belt
Abbyville Gabbro   Dark greenish gray Northeastern North Carolina Abbyville Gabbro Formation
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 Northeastern North Carolina  
Argillite
(Generic type)
  Light to dark green, but may range to various shades of gray. North America Varies
Bangor Chert Translucent and banded, ranging in color from black to a dark bluish gray or greenish Southwestern North Carolina Bangor Limestone formation
Chepultepec Chert
Knox Chert Variant
(Ridge and Valley Chert)
Ranges from yellow to white and oolitic Western North Carolina Chapultepec Member of the Knox Formation
Chilhowee Mudstone   greenish-gray in color Western North Carolina Chilhowee Group
Cid Meta- Mudstone   Thinly laminated tuffaceous argillite mudstone ranging from a bluish gray to a greenish gray. South central North Carolina Cid Formation of the Albemarle Group
Conococheague Chert Ranges from a gray to a bluish gray, brownish gray, or black.  Small blue to white inclusions may be present. Northwestern North Carolina Conococheague Limestone Formation
Copper Ridge Chert
(Ridge and Valley Chert)
Ranges in color from medium to dark gray to black Western North Carolina Copper Ridge Member of the Knox formation
Crystal Quartz   clear colorless stone similar to clear glass Eastern North America  
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 North Carolina Erwin Formation of the Chilhowee Group
Floyd Church Meta-Argillite / MetaMudstone   Gray Southwestern North Carolina Floyd Church Formation of the Albemarle Group
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 North Carolina Fort Payne 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 Northeastern North Carolina Possible Harpers Formation of the Chilhowee Group
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 Northwestern North Carolina Honaker Formation / Nolichucky Formation
Kingsport Chert Ranges from white to a medium to dark gray. Western North Carolina 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. Western North Carolina Knox Formation
Lenoir Chert Dark Gray Western North Carolina Lenoir Limestone Formation
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. Northeastern North Carolina  
Longview Chert
Knox variation
Primarily reddish, but white to gray colors do occur Western North Carolina Longview Member of the Knox formation
Macot Dolomite / Chert Ranges from white to a light to medium gray with with mottling or streaking ranging from pink to red or green Western North Carolina Mascot Dolomite Formation of the Newala Group
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. Northeastern North Carolina  
Morrow Mountain Rhyolite
AKA: Uwharrie Rhyolite
  Homogeneous dark gray to black and many shades of green, flow banding may be present. Central North Carolina  
Mount Rodgers Rhyolite   Ranges in color from a dark white to gray and light pink to purple with banding being present Northwestern North Carolina Mount Rodgers Formation
Nottoway River Quartzite   Two variations, one is a light blue and the other is a root beer brown.
Northeastern North Carolina  
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. Northwestern North Carolina Patuxent / Mattaponi 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  
Shady Chert Ranges from a bluish gray to a yellowish gray blue, or white with mottling commonly present.  Western North Carolina Shady Dolomite Formation
Tusquitee Quartzite   Ranges from a white to a light yellowish gray. Southwestern North Carolina Tusquitee Quartzite Member of the Nantahala Formation
Unakite   Mottled green and pink Tennessee , North Carolina, Virginia, New Jersey  
Wolf Den Mountain Rhyolite   Ranges from a medium to dark gray with white speckles. Central North Carolina