Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated Formation / Member
Allens Creek Chert Muldraugh variation AKA: Floyds Knob Chert				Mottled and ranges in color from gray, tan, brown, and blue.  May be translucent.	North central central Kentucky	Muldraugh Formation of the Sanders Group
Argillite				Light to dark green, but may range to various shades of gray.	Kentucky
Bailey Chert					Western Kentucky	Bailey Formation Limestone
Banded Slate					Kentucky
Berea Sandstone				Light gray to a buff	Extreme northeastern Kentucky	Waverly Group
Bisher Chert AKA: Highland Chert, Lilley Chert				Ranges in color from a white to yellow including mottled tan and creams.	North central Kentucky	Bisher Dolomite formation
Bowling Green Chert					Southeastern Missouri	Bowling Green Member of the Edgewood Limestone Formation
Brassfield Chert AKA: Clifton Chert / Agate, Belfast Chert				Artifacts tend to range in color from light greenish to blue or light tans mottled with yellowish red to milky white	Central Kentucky	Brassfield Formation
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.	Northeastern Kentucky	Breathitt Formation
Broyle Chert				Vary in color from yellows to tan or blues.  The cortex is white and chalky.  Rarely may be translucent	North central Kentucky	Middle Devonian  chert
Brush Creek Chert AKA: Crooksville Chert, Hughes River Chert				Varies in color from a tan to a brown olive or light green	Northeastern Kentucky	Conemaugh Group
Burlington Chert				Varies from white to gray or tan.  Banding and mottling may be present.	Western Kentucky	Burlington Formation
Cain Springs Chert					North central Kentucky
Cambridge Chert				Gray colored chert	North eastern Kentucky	Cambridge Member of the Conemaugh Formation
Camden Chert				Mottled white to gray, gray to gray blue, pale yellow to olive-yellow or tan.  Vugs, quarts inclusions, streaking generally present	Western Kentucky	Tuscaloosa Formation
Cannel Coal				Ranges from dark gray to black	Eastern Kentucky
Carter Cave Chert AKA for Paoli Chert				Translucent and ranges in color from yellow to tan, red, and orange.  Rarely green and blue are present	Northwestern Kentucky	Paoli Limestone formation
Clear Creek Chert				Ranges from a slight yellowing gray to white	Western Kentucky	Overlies the Backbone Limestone formation
Cobden- Dongola Chert AKA: Anna Chert, Hornstone, and St. Louis Ball Chert				Shades of dark gray to blue-gray which may be solid or have dark gray bands	Western Kentucky	St. Louis Limestone
Coffee Creek Chert Jeffersonville Chert variation				Semi-translucent and variegated ranging from a bright white to a light gray, very pale brown, slightly pinkish white in color with a milky or creamy appearance	Extreme north central Kentucky	Jeffersonville 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
Crab Orchard Banded Chert AKA: Gray Banded, Jelly Roll, Kentucky Stromatoporoid chert				Banded gray and white.  It has broad alternating bands of light to dark whites and grays followed by darker grays to almost black	Central to western Kentucky	Crab Orchard member
Crystal Quartz				clear colorless stone similar to clear glass	Kentucky
Degonia Chert				Ranges from white to gray and blue	Northwestern Kentucky	Degonia formation
Derby Chert				Vary in color from a light medium gray to a medium dark gray.  White or dark gray banding may be present	Northwestern Kentucky
Ditney Chert					Northwestern Kentucky	Shelburn formation topping the West Limestone member
Dongola Chert				Dark tan to dark brown with banding of dark brown	Western Kentucky	St. Louis formation
Dover Chert Fort Payne variant AKA: Elco Chert				Range from a light tan to almost a black chocolate brown with swirls, bands, or streaks of light to dark	Kentucky	Fort Payne Formation
Ferdinand Chert				Dark bluish gray fossiliferous chert	Northwestern Kentucky	Mansdfield formation, Lead Creek member
Flanagan Chert				Gray color	Central Kentucky	Flanagan Limestone Formation
Flint Ridge Chert /Chalcedony AKA: Van Port Chert, Raccoon Creek Chert				White to bluish hues with bands of light gray, reds, and yellows	Central to eastern Kentucky	Van Port Member of the Allegheny Formation
Fort Payne 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	Fort Payne formation
Grassy Knob Chert				Ranges in color from a pale yellowish gray to a light olive brown	Western Kentucky	Bailey Limestone formation
Greenfield Chert				Ranges from a light to dark gray with white chalcedony / quartz inclusions..	Northwestern Kentucky	Greenfield formation, Saline Group
Haney Chert				Color is white or light gray with specks of brown	Northwestern Kentucky	Haney Limestone formation
Hardy Creek Chert				Ranges from a brown to a gray or an olive black	Southeastern Kentucky	Hardy Creek Limestone Formation
Harrodsburg Chert				Ranges from commonly dark olive-brown to tan, although various shades of browns, tans, blues, and off-white, oolites form white speckles	North central Kentucky	Harrodsburg Limestone formation
Hillsdale Chert				Black weathering gray	Eastern Kentucky	Hillsdale Limestone Formation
Holland Chert AKA: Upper Huntingburg Chert				High quality light gay to dark bluish gray chert	North central Kentucky	Holland Limestone formation
Hopkinsville Chert Ste. Genevieve Variation				Ranges in color from a light to dark gray color.	Southwestern Kentucky	Ste. Genevieve formation
Kanawha Black Chert				Vary from a black to a bluish black /gray to a dark gray	Northwestern Kentucky	Kanawha formation
Kaolin Chert				Ranges from hues of golden tans to gray and reds.  Light banding may be present.	Western Kentucky	Paleozoic Limestone formation
Kornthal Chert Kornthal Chert Breccia				Brecciated to conglomeritic ranging from a pinkish gray, to red most common, blue, yellow, brown, and inclusions of white chert or quartz	Western Kentucky	McNairy Formation
Lafayette Gravel Chert				Most commonly ranges from brown to tan, greyish tan, yellowish tan, or cream, less common white and black occur. Mottling or rarely banded	Western Kentucky	Lafayette Gravel Formation
Lafayette Quartzite					Western Kentucky	Lafayette Gravel Formation
Laurel Chert AKA: Raisch-Smith Chert				Mottled and ranges in color from a off white to a light tan or light gray.	North Central Kentucky	Laurel formation
Lead Creek Chert Type I AKA: Rockport Chert				Opaque, mottled, varying shades of gray commonly having a marbles appearance with patches or streaks of an orange, tan, or gray	North central to northwestern Kentucky	Lead Creek Limestone Formation
Lead Creek Chert Type II AKA Plummer Chert				Opaque, variegated with shades of medium to dark gray.  Patches or streaks of orange, tan, or gray and white specks of fossils	North central to northwestern Kentucky	Lead Creek Limestone Formation
Lead Creek Chert Type III AKA: Lieber Chert				Mottled and ranges in colors from a pale blue to a dark navy blue or black.	North central to northwestern Kentucky	Lead Creek Limestone Formation
Lenoir Chert				Dark Gray	Tennessee, Virginia, West Virginia, Kentucky, South Carolina, Georgia, Alabama	Lenoir Limestone Formation
Louisville Chert				Varies in color from a very light gray to a medium light gray.  It is mottled and opaque and may have brownish specks	North central Kentucky	Louisville Limestone formation
Lower Mercer Chert				Bluish gray color with quartz inclusions.	Northeastern Kentucky	Lower Mercer Member of the Pottsville 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	Southeastern Kentucky	Mascot Dolomite Formation of the Newala Group
McNairy Quartzite				Tightly packed pale yellowish quartzite with limited or no inclusions.  Red staining may be present.	Northwestern Kentucky	McNairy Formation
Mill Creek Chert				Vary from white to gray, grayish brown, orange white to orange gray, or pale blue to black.  Concentric banding may be present	Western Kentucky	Salem / Ullim Limestone formation
Monteagle Chert				Medium gray	South central Kentucky	Monteagle Limestone formation
Mounds Gravel Chert Lafayette Chert variation				Most commonly ranges from brown to tan, greyish tan, yellowish tan, or cream.  Less commonly white, black, pink, red, olive gray or greenish gray	Northwestern Kentucky	Lafayette Gravel Formation
Muldraugh Chert				Ranges in color from light to medium grays, pale brown to an light olive brown or dusty yellow.  Variegated or mottling or vugs may be present..	North central to central Kentucky	Muldraugh Formation of the Sanders Group
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	Northern to central Kentucky	Van Port Member of the Allegheny Formation
New Castle Chert				Ranges from a more common duller variegated light gray to a pale brown or a less common homogeneous bluish gray	North central Kentucky	Silver Creek limestone formation
Newman Chert				Ranges in color from  yellow to tan, red, and orange	Southeastern Kentucky	Newman Limestone formation
Obryan Chert AKA: Southern Vanport Chert				Ranges in color from a mottled gray to white with calcium carbonate vermiculate lines	Northeastern Kentucky	Allegheny formation of the Obryan Member
Orthoquartzite				Varies	Kentucky
Paoli Chert AKA: Carter Cave Chert				Translucent and ranges in color from yellow to tan, red, and orange.  Rarely green and blue are present	Northwestern Kentucky	Paoli Limestone formation
Poteet Chert				Ranges from a dark olive gray to olive black.	Southeastern Kentucky	Poteet Limestone Formation
Quartz				Milky white with thin veins	Kentucky
Quartzite				Varies from white to gray, or pink and tan in color	Kentucky
Ramp Creek Chert					Extreme north central Kentucky	Ramp Creek Limestone Member, Muldraugh Formation
Rhyolite				Gray to grayish black, flow banding may be present alternating from light to darker gray	Kentucky
Salem Chert				Ranges from a dull brown to gray	Northwestern Kentucky	Salem Formation
Sonora Flint AKA for Wyandotte Chert				Vibrant colorful flint that may range from tans to light gray-blue and dark brown to purples	Kentucky	Ste. Genevieve Limestone formation
St. Louis Green Chert AKA: St. Louis Formation Chert				Varying shades from light gray green to yellow green	Western to central Kentucky	St. Louis formation
Ste. Genevieve Chert				Ranges from light to medium blue, gray, and black, to olive gray and yellowish gray with gray concentric bands commonly present	Western Kentucky	Ste. Genevieve Limestone formation
Tyrone Chert AKA: Crab Orchard Chert				Two tone or stripped colors	Eastern to central Kentucky	Tyrone Group
Ullin Chert				brownish gray color	Northwestern Kentucky	Ullin Formation
Vienna Chert				Ranges from a deep bluish black to a light grayish tan or pinkish	Kentucky, Illinois, Indiana	Vienna Formation
Wayne County Chert AKA: Kentucky Blue and White Chert				Off white to light tan with white and blue	South central Kentucky
West Franklin Chert				Ranges from a light gray to light bluish gray.  Commonly mottled with blue and with light brown streaks and chalky vugs	Northwestern Kentucky
Wyandotte Chert AKA: Indiana Hornstone, Harrison County Chert				Ranges in color from a medium bluefish gray to a medium light gray.  Banding is common and is various shades of gray	Western Kentucky	Fredonia Member of the Ste. Genevieve Limestone formation