Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated                Formation / Member
Aarde Shale				Dull yellowish gray	Eastern Kansas	Aarden Shale Member of the Howard Limestone Formation
Alibates Chert				Mottled color from most commonly reds, yellows, and oranges in iron rich areas to blues and dark greens	Southwestern Kansas	Quartermaster Formation
Arbuckle Chert				Oolitic and ranges from a tan to a light gray color.	Southeastern Kansas	Arbuckle Formation, Osage Group
Argentine Chert				Ranges in color from a light tan to a pale to medium gray.  Light mottling or streaking may be present.	Northeastern Kansas	Argentine Member of the Wyandotte Limestone Formation
Baldy Hill Jasper AKA: Cimarron River Jasper				Mottled color from most commonly varying shades of reds and yellows.	Southwestern Kansas	Baldy Hill Formation
Blue River Agate					Northeastern Kansas	Eskridge Formation
Blue Springs Chert					Northeastern Kansas
Blue Valley Agate				White to light blue or pinkish matrix with pink bands or patches	Northeastern Kansas	Wreford Formation
Boone Chert AKA: Sallisaw Chert, Grand Falls Chert, Ti Valley Chert				Ranges from a light gray to white	Southeastern Kansas	Boone Limestone Formation
Cherokee Chert					Kansas
Cheyenne Quartzite					Southern Kansas	Cheyenne Sandstone Formation
Cottonwood Chert AKA: Manhattan Chert				Grayish brown with patches of shades of white.	Northeastern Kansas	Cottonwood Limestone Formation
Dakota Quartzite AKA: Dakota Orthoquartzite				Ranges in color from reds to browns	Western Kansas	Dakota Formation
Day Creek Chert				Ranges from a mottled very light pale blue to a grayish blue or a reddish blue.  Tan and brown mottling or streaking may be present	Southwestern Kansas	Day Creek Dolomite Member of the Cloud Chief Formation
Ervine Creek Chert				Ranges from a light medium gray to a dark gray.  Larger white specks are formed by fossils	Northeastern Kansas	Ervine Creek Limestone Member, Deer Creek Limestone Formation
Flint Hill Chert AKA fro Florence Chert type D				Wide range of colors including shades of blue and gray, whites, and browns.	Central Kansas	Florence Limestone Member of the Barnestone Formation
Flint Hills Quartzite					Central Kansas
Florence Chert - Type A AKA: Kay County Chert, Maple City Chert				Banded or "wood grained" and ranges in color from a buff to a yellow gray.  Heat treatment produces a red color.	Southern Kansas	Florence Limestone Member, Barnestone Formation, Permian Group
Florence Chert - Type B				Ranges in color from a steel gray to a bluish gray with lighter colored splotches or darker colored mottling.	Southern Kansas	Florence Limestone Member, Barnestone Formation, Permian Group
Florence Chert - Type C				Homogenous gray	Southern Kansas	Florence Limestone Member, Barnestone Formation, Permian Group
Florence Chert - Type D AKA: Flint Hills Chert				Ranges from gray to a buff with many thin bands of darker translucent material.	Southern Kansas	Florence Limestone Member, Barnestone Formation, Permian
Foraker Chert AKA: Four Ace Chert				Light blue color with numerous snow white speckles of fossils.	Kansas, Oklahoma, Arkansas	Foraker Limestone Formation
Fort Scott Chert AKA: Bixby Black Chert				Ranges from a dark bluish black to black.	Oklahoma, Arkansas, Kansas, Missouri	Fort Scott Limestone Formation, Henrietta (Marmaton) Group
Gilmore City Chert				Opaque brownish gray	Northeastern Kansas	Gilmore City Formation
Grand Falls Chert Boone Chert variation				Light gray color and may vary to brown	Southeastern Kansas	Grand Falls Member of the Boone Formation
Hunton Chert					North central Kansas	Hunton Limestone Formation
Kansas Pipestone				Homogenous medium red color	Kansas
Keokuk Chert				Ranges from a creamy white to a whitish pink with streaks or patches of whitish brown or whitish pink and reddish spots commonly present.	Missouri, Kansas, Arkansas, Oklahoma	Keokuk Formation of the St. Joes Group
Luta Chert AKA: Marion Chert, Winfield Chert				Banded chert	East central Kansas	Luta Limestone Member of the Winfield Formation
Nehawka Chert Rice Grain Chert, Protozoa Agate, Weeping Water Chert				Ranges from grayish blue to blue with oolitic white specks	Northeastern Kansas	Pennsylvanian Limestone Formation
Neva Chert				White	Central Kansas	Neva Limestone Member of the Grenola Formation
Ogallala Orthoquartzite AKA: Bijou Hills Silicified Sediment and Sugar Rock				Colors can vary, but most common colors are light to dark gray, tan, white, pink, maroon, or golden	Western Kansas	Ogallala Formation
Ogallala Palm Wood AKA: Petrified Palmwood				Ranges from white to a dark gray with specks.	Western Kansas	Ogallala Formation
Ogallala Silicified Sediment AKA: Ogallala Chert				Ranges from a buff to a reddish color or gray.  Quartz inclusions form speckles in the material.	Western Kansas	Ogallala Formation
Osage Chert Osage Undifferentiated Chert				Ranges from a white to light gray or light brown.  Occasionally gray to dark gray mottling is present.	Eastern Kansas	Osage Series
Peoria Chert AKA: Tahlequah  Chert				Primarily white but ranges to a pale yellowish what to a yellowish brown or pink	Southeastern Kansas	Tahlequah Member of the Moorefield Formation
Petrified Wood AKA: Agatized Wood, Opalized Wood				Vary in color based on the minerals present during the process	Kansas	Varies
Plattsburg Chert				Light brown color.	Northeastern Kansas	Plattsburg Limestone Formation
Reed's Spring Chert AKA: Carr Branch Chert				Opaque chert ranging in color from a bluish gray to a light gray or yellowish brown.	Southeastern Kansas	Reed's Springs formation
Republican River Jasper AKA for Smoky Hills Jasper				Vary in color from a mustard brown or caramel brown to a chalky or creamy white, less commonly red, green, or black does occur, Inclusions and dendrites may be present	North central Kansas	Smoky Hills Member of the Niobrara Chalk Formation
Rhyolite				Gray to grayish black, flow banding may be present alternating from light to darker gray	Kansas	Volcanic Activity
Schroyer Chert AKA: Wreford Type B				Ranges from bluish gray to a gray and may be mottled or splotched with darker gray with speckles of small white fossils	Central Kansas	Schroyer Member, Wrenford Limestone Formation
Smoky Hills Jasper AKA: Alma, Graham,  Niobrara, Republican River Jasper				Vary in color from a mustard brown or caramel brown to a chalky or creamy white, less commonly red, green, or black does occur, Inclusions and dendrites may be present	North central Kansas
South Bend Chert				Ranges from a light gray to a light bluish gray, concretions are commonly present.	Northeastern Kansas	South Bend Limestone Member of the Stanton Limestone Formation
Spring Hill Chert				Strongly mottled and ranges from light to dark gray with dark speckles being present.	Northeastern Kansas	Spring Hill Member, Plattsburg Limestone Formation
Stoner Chert Type A and B				Ranges from light to medium gray or a grayish tan with white veins.	Northeastern Kansas	Stoner Member of the Stanton Formation, Lansing Group
Three Mile Chert Wreford Chert Variant AKA: Wreford Chert type A				Yellowish brown	Southeastern Kansas	Threemile Limestone Member, Wreford Limestone Formation, Permian Group
Toronto Chert				Homogenous ranging from a white to a pale brown or yellowish brown.	Northeastern Kansas	Toronto Limestone Member, Oread Formation of the Shawnee Group
Tuff AKA: Solidified Volcanic Ash				Contains greater than 75 volcanic ash and ranges from white to tan, gray or pink.	Kansas	Volcanic activity
Westerville Chert				Ranges from homogeneous to mottled pale brown to a light yellowish brown or brownish yellow with thin bands may be present.	Northeastern Kansas	Westerville Limestone Member of the Cherryvale Shale Formation
Winterset Chert AKA: Fusulinid Chert, Zebra Chert				Primarily homogenous, ranging to mottled or layered, ranging from a light to dark gray or brownish gray, opaque may have a "zebra" appearance	Northeastern Kansas	Winterset Limestone Member of the Dennis Limestone Formation, Kansas City Group
Wreford Chert				Ranges from a buff to tan or grayish tan to a bluish gray to gray.  Mottling or banding may be present.	Central Kansas	Wreford Limestone Formation