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.	Central to southeastern Indiana	Muldraugh Formation of the Sanders Group
Argillite				Light to dark green, but may range to various shades of gray.	Indiana
Attica Chert AKA: Indiana Greenstone and Independence Chert				Ranges from a greenish gray to gray or blue-gray with occasional mottled or streaked with swirls of light to medium green	Central and west central Indiana	Muldraugh Formation of the Borden Group
Bailey Chert					Extreme southwestern Indiana	Bailey Formation Limestone
Banded Slate					Indiana
Bayport Chert				Varies from light brown to a medium gray.  White quartz inclusions can form white clouds or bulls eye forms in the material, Banding may be present.	Extreme northeastern Indiana	Bayport Limestone formation
Beech Creek Chert					Indiana	Beech Creek Limestone formation
Bisher Chert AKA: Highland Chert, Lilley Chert				Ranges in color from a white to yellow including mottled tan and creams.	Extreme southeastern Indiana	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	Southeastern Indiana	Brassfield Formation
Broyle Chert				Vary in color from yellows to tan or blues.  The cortex is white and chalky.  Rarely may be translucent	Southeastern Indiana	Middle Devonian  chert
Bryantsville Chert AKA: Burton Chert				Ranges in color from a light gray to a grayish brown color	Southern Indiana	Levias Member of the Ste. Genevieve Limestone formation
Burlington Chert				Varies from white to gray or tan.  Banding and mottling may be present.	Western Indiana	Burlington Formation
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	West central to southwestern Indiana	Paoli Limestone formation
Cedarville - Guelph Chert AKA: Shawnee Chert				Primarily a mottled white to light gray or light blue  numerous fossils giving a  speckled appearance with vugs or quartz present	Northeastern Indiana	Cedarville-Guelph formation
Clear Creek Chert				Ranges from a slight yellowing gray to white	Central to southwestern Indiana	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	Extreme southwestern Indiana	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	Southeastern Indiana	Jeffersonville Limestone formation
Columbus Chert				Ranges in color from a white to a light gray	Extreme northeastern Indiana	Columbus Limestone 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	Southern Indiana	Crab Orchard member
Crystal Quartz				clear colorless stone similar to clear glass	Indiana
Degonia Chert				Ranges from white to gray and blue	Southwestern Indiana	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	Southwestern Indiana
Ditney Chert					Southwestern Indiana	Shelburn formation topping the West Limestone member
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	Indiana	Fort Payne Formation
Fall Creek Chert Jeffersonville Chert variant				Ranges in color from shades of whites to grays varying from light to dark gray.	East central Indiana	Jeffersonville Limestone formation
Ferdinand Chert				Dark bluish gray fossiliferous chert	Extreme southwestern Indiana	Mansdfield formation, Lead Creek member
Flint Ridge Chert /Chalcedony AKA: Van Port Chert, Raccoon Creek Chert				White to bluish hues with bands of light gray, reds, and yellows	Indiana	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	Extreme southern Indiana	Fort Payne formation
Four Mile Creek Chert AKA: Salamonie Chert				Ranges from a pink to an off white, light gray, light blue, or light bluish gray color.  Chalcedony inclusion may be present.	Extreme southeastern Indiana	Salamonie formation, Laurel member
Grassy Knob Chert				Ranges in color from a pale yellowish gray to a light olive brown	Southwestern Indiana	Bailey Limestone formation
Haney Chert				Color is white or light gray with specks of brown	Extreme southern Indiana	Haney 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	Southern Indiana	Harrodsburg Limestone formation
Holland Chert AKA: Upper Huntingburg Chert				High quality light gay to dark bluish gray chert	Southern Indiana	Holland Limestone formation
Indian Creek Chert AKA: Richland Chert				Beige to buff or tan with browns occasionally being present.  Variegated shades of dark grays or purplish grays may be present	West central Indiana	Ste. Genevieve Limestone formations
Jeffersonville Chert				Ranges from white to cream or light yellow to tan and medium brown darker brown bands appearing jagged and interspersed	West central Indiana	Jeffersonville Limestone formation
Kaolin Chert				Ranges from hues of golden tans to gray and reds.  Light banding may be present.	Extreme southwestern Indiana	Paleozoic Limestone formation
Kenneth Chert				Varying shades of creamy white to light gray with mottle or speckled darker grays to almost black	Northern Indiana	Kenneth Limestone Member
Laurel Chert AKA: Raisch-Smith Chert				Mottled and ranges in color from a off white to a light tan or light gray.	Southeastern Indiana	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	Southern Indiana	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	Southern Indiana	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.	Southern Indiana	Lead Creek Limestone Formation
Liston Creek Chert				Mottled and ranges from light grays, yellows, and tans coloration.	Northern Indiana	Liston Creek Limestone formation
Lost River Chert AKA: Bowling Green Chert				Ranges in color from a bluish gray to a light brownish gray	Southwestern Indiana	Ste. Genevieve Limestone
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	Extreme southern Indiana	Louisville Limestone 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..	Eastern Indiana	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	Indiana	Van Port Member of the Allegheny Formation
New Castle Chert AKA: New Chapel Chert				Ranges from a more common duller variegated light gray to a pale brown or a less common homogeneous bluish gray	Extreme southern Indiana	Silver Creek limestone formation
Onondaga Chert AKA: Buttermilk Falls, Black Rock, Clarence, Coniferous, Diver's Lake, Edgecliff, Moore House, Nedrow, Seneca, Fort Erie Chert				Vary from light to dark gray to a mottled bluish gray to a dark brown or black or tan.	Northeastern Indiana	Onondaga Limestone Formation
Orthoquartzite				Varies	Indiana
Paoli Chert AKA: Carter Cave Chert				Translucent and ranges in color from yellow to tan, red, and orange.  Rarely green and blue are present	Central to southwestern Indiana	Paoli Limestone formation
Pipe Creek Chert AKA: Tenmile Creek, Perkins, Plum Brook, Brook Chert				Ranges from gray to bluish gray or a pale brown, may be mottled or homogenous, light blue cloudy and quartz lined vugs may be present	Extreme northeastern Indiana	Tenmile Creek Formation
Quartz				Milky white with thin veins	Indiana
Quartzite				Varies from white to gray, or pink and tan in color	Indiana
Ramp Creek Chert					Southern Indiana	Ramp Creek Limestone Member, Muldraugh Formation
Rhyolite				Gray to grayish black, flow banding may be present alternating from light to darker gray	Indiana
Shakopee Chert				Ranges from white to gray with contrasting banding	Northwestern Indiana	Shakopee Dolomite formation
Sonora Flint AKA for Wyandotte Chert				Vibrant colorful flint that may range from tans to light gray-blue and dark brown to purples	Southern Indiana	Ste. Genevieve Limestone formation
St. Louis Green Chert AKA: St. Louis Formation Chert				Varying shades from light gray green to yellow green	Southwestern Indiana	St. Louis formation
Stanford Chert				Ranges from shades of medium gray with lighter and darker shades occurring with white and gray speckles	Central Indiana	Ste. Genevieve Limestone 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	Southern Indiana	Ste. Genevieve Limestone formation
Sugar Creek Chert Attica variant				Ranges in color bluish gray to olive gray variegated or a tan to a chocolate brown with white cloudy streaks with quartz inclusions	Central Indiana	Muldraugh Formation of the Borden Group
Transverse Chert				Dark gray	Extreme northeastern Indiana	Transverse Limestone formation
Vienna Chert				Ranges from a deep bluish black to a light grayish tan or pinkish	Southwestern Indiana	Vienna Formation
West Franklin Chert				Ranges from a light gray to light bluish gray.  Commonly mottled with blue and with light brown streaks and chalky vugs	Extreme southern Indiana
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	Southern Indiana	Fredonia Member of the Ste. Genevieve Limestone formation
Zaleski Chert Upper Mercer Chert variation AKA: Black Flint				Glossy black and commonly has white streaks	Northeastern Indiana	Zaleski member of the Allegheny Formation