Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated Formation / Member
Andesite Generic Type					North America	Varies
Attalla Chert				Occurs as a conglomerate or breccia and is light to medium gray.  Primarily has small angular chert fragments in a siliceous matrix.	Northeastern Alabama	Attalla Chert Conglomerate, Chickamauga Limestone Formation
Argillite (Generic Type)				Light to dark green, but may range to various shades of gray.	North America	Varies
Armuchee Chert AKA: Horse Leg Chert (Ridge and Valley Chert)				Black to dark or medium gray	Northeastern Alabama	Frog Mountain formation
Bangor Chert (Ridge and Valley Chert)				Translucent and banded, ranging in color from black to a dark bluish gray or greenish	Northern Alabama	Bangor Limestone Formation
Bangor Limestone AKA: Colbert County Limestone				Medium gray	Northern Alabama	Bangor Limestone Formation
Bibb Chert				Dark gray with chert nodules characterized by irregular cavities	Central Alabama	Bibb Dolomite Member of the Knox Formation
Blue Gray Fort Payne Chert				Opaque gray to bluish gray, or black with tan patches.  White fossil specks are usually present	Northern Alabama	Fort Payne Formation
Blushing Star Coral (Species type)				Ranges from grayish white to gray with darker "star burst" patters present.	Southeastern Alabama	Tampa Formation
Box Fire Coral (Species type)				Encrusted base with thick walled box like structure forming upward.	Southeastern Alabama	Tampa 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	Northwestern Alabama	Brassfield Formation
Brain Coral (Species type)				Brain like shape with ridges and deep interconnected double valleys.	Southeastern Alabama	Tampa Formation
Brierfield Chert				Ranges from a medium to dark blue gray in color characterized by chert with irregular cavities.	Central Alabama	Brierfield Dolomite Formation
Buffalo River Chert				Ranges in color from light to dark tans with orangish, reddish and bluish hues.  May have gray or brownish swirls	Northwestern Alabama	Fort Payne Formation
Camden Chert				Mottled white to gray, gray to gray blue, pale yellow to olive-yellow or tan.  Vugs, quarts inclusions, streaking generally present	Northwestern Alabama	Tuscaloosa Formation
Carnelian (Generic Type)				Translucent and varies in shades from reddish brown to reddish orange.	North America	Varies
Catahoula Orthoquartzite				Range from white to gray, tan, black, green, or almost clear with black angular inclusions giving a "peppered" appearance.	Southwestern Alabama	Catahoula Formation
Cheaha Quartzite				Ranges in color from a white to light gray	Central Alabama	Cheaha Quartzite Member of the Talladega Formation
Chepultepec Chert Knox Chert Variant (Ridge and Valley Chert)				Ranges from yellow to white and oolitic	Northern Alabama	Chapultepec Member of the Knox Formation
Chickamauga Chert (Ridge and Valley Chert)				Ranges from a brownish black to a black in bedded limestone, but ranges to a drab olive green in limestone boulders.	Northeastern Alabama	Chickamauga Limestone Formation
Clayton Chert (Coastal Chert)				Ranges from yellow to brown, though white may occur.	Southern Alabama	Clayton Formation of the Midway Group
Clear Branch Chert				Black	North central Alabama	Clear Branch Sandstone Formation
Conasauga Chert (Ridge and Valley Chert)				Most commonly a light bluish gray to tan or silver, rarely reds do occur.    Commonly mottled and is oolitic.  May be very chalcedonic	Northeastern Alabama	Conasauga Formation
Copper Ridge Chert Knox Chert variant (Ridge and Valley Chert)				Ranges in color from medium to dark gray to black	Northern Alabama	Copper Ridge Member of the Knox formation
Crystal Quartz				clear colorless stone similar to clear glass	Eastern North America
Flint River Chert AKA: Butterscotch Chert (Coastal Chert)				Ranges from a yellowish brown to a medium brown.	Southeastern Alabama	Flint River Formation, Vicksburg Group
Florence County Fort Payne Chert				Ranges in color from dark gray to black and is mottled with lighter translucent light blue	Northern Alabama	Fort Payne Formation
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	Northern Alabama	Fort Payne Formation
Fossilized Coral AKA: Agatized Coral, Silicified Coral, Coral Chalcedony (Generic Type)				Ranges from clear to white, grayish blue, brown, tan, or yellow.  Starburst patterns or banding may be present.	Southeastern Alabama	Tampa Formation
Glendon Chert (Coastal Chert)				Ranges from white to a creamy tan or brown with dark gray, black, and bluish white also occurring.  Clear chalcedony and mottling commonly occurs.	Southern Alabama	Glendon Limestone Formation, Vicksburg Group
Hattiesburg Orthoquartzite				Gray opal cemented quarttztic siltstone or sandstone that may have shades of light brown or tan giving a mottled appearance.	Southwestern Alabama	Hattiesburg Formation
Horse Creek Chert Tuscaloosa variation AKA: Pickwick Chert and Lost Quarry Chert				Banded with the band colors ranging from black to medium gray (outer band), yellow tan to pale yellow (next band), pink to reddish or brick red (center).	Northern Alabama	Tuscaloosa Formation
Jefferson County Fort Payne Chert				Mottled light tan to white, beige is the most common color	Northern Alabama	Fort Payne Formation
Jemison Chert				Commonly a light gray with iron staining.	Central Alabama	Jemison Chert Formation, Talladega Group
Kalona Quartzite				Ranges from a light gray to a light brown or white.	South central Alabama	Kalona Quartzite Member, Wash Creek Slate Formation,
Ketona Chert Knox Chert variation				Light gray	Northern Alabama	Ketona Dolomite Member of the Knox Formation
Knox Chert				Dark blue to bluish gray with translucent mottling.  Red Knox Chert has a reddish color with slight mottling.	Northern Alabama	Knox Formation
Lenoir Chert				Dark Gray	Northeastern Alabama	Lenoir Limestone Formation
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.	East central Alabama	Lisbon Limestone Formation of the Clairborne Group
Little Oak Chert				Ranges from a medium dark gray to dark gray.	North central Alabama	Little Oak Limestone Formation
Longview Chert Knox variation				Primarily reddish, but white to gray colors do occur	Northern Alabama	Longview Member of the Knox Formation
Marianne Chert AKA: Mint Springs Marl				Ranges from a white to cream color	Southern Alabama	Mint Springs Marl Member of the Marianna Limestone Formation, Vicksburg Group
Mountainous Star Coral Orbicella Faveolata (Species type)				Solid, very large dome or stumped shaped with small lumps, bulges, or lobes.	Southeastern Alabama	Tampa Formation
Mustard Chert (Fort Payne variant)				Ranges from a  tannish yellow and olive color to a bluish black and commonly has strings of bryozoan fossils forming a "string of beads".	Northeastern Alabama	Ft Payne Formation
Newala Chert (Ridge and Valley Chert)				Ranges in color from black to gray, white to faint purple with bands of smoky gray to olive green	Northeastern Alabama	Newala Limestone Formation
Ocala Chert AKA: Jackson Stage Chert (Coastal Chert)				Ranges in color from a a white to a cream or tan, yellow, red, and black colors also occur.  Fossil inclusions commonly occur.	Southeastern Alabama	Ocala Limestone Formation, Jackson Group.
Orthoquartzite (Generic Type)				Ranges from white to tan, red green, brown, or black.	North America	Varies
Paint Rock Agate AKA: Greasy Cove Agate				Colors of yellow, orange, red black, gray, and blue with banding or quartz formation at the center of the nodule occasionally occurring.	Northeastern Alabama
Petrified Wood AKA: Agatized Wood, Opalized Wood				Vary in color based on the minerals present during the process	North America	Varies
Piedmont Gravel Quartz				Ranges from bright white to light gray, tan, brown, pink, or red.	West central Alabama
Quartz AKA: Vein Quartz				Milky white with thin veins	North America	Varies
Quartzite (Generic Type)				Varies from white to gray, or pink and tan in color	North America	Varies
Randall Creek Petrified Wood				Shades of cream, tan, and brown with wood grain or rings commonly present.	Southeastern Alabama
Rhyolite (Generic Type)				Gray to grayish black, flow banding may be present alternating from light to darker gray	North America	Varies
Shady Chert				Ranges from a bluish gray to a yellowish gray blue, or white with mottling commonly present.	Northeastern Alabama	Shady Dolomite Formation
Staghorn Coral (Species type)				Cylindrical branches	Southeastern Alabama	Tampa Formation
Suwannee Chert (Coastal Chert)				Ranges from brown to a creamy tan with dark gray, black, and bluish white also occurring, chalcedony, mottling, or banding may occur.  J	Southeastern Alabama	Suwannee Limestone Formation, Vicksburg Group
Tallahatta Chert AKA: Tallahatta Chert, Alabama Agate				Glossy multicolored chert that may vary from red to amber, yellow, and blue.	Southern Alabama	Tallahatta Formation, Clairborne Group
Tallahatta Quartz AKA: Tallahatta Sandstone, Snowflake Quartzite				Light gray arenite with white specks giving a snowflake appearance.	Southern Alabama	Tallahatta Formation, Clairborne Group
Tampa Chert				Ranges from a yellow to a tan or brown with medium to dark gray also occurring.  Chalcedony or quartz filled vugs are commonly present..	Southeastern Alabama	Tampa Limestone Formation
Tuff AKA: Solidified Volcanic Ash				Contains greater than 75 volcanic ash and ranges from white to tan, gray or pink.	North America	Volcanic activity
Tupelo Fort Payne Chert				Light beige to light tan with light gray mottling and may have banding.  It has a creamy appearance	Northern Alabama	Fort Payne formation
Tuscaloosa Chert AKA: Red / Yellow Jasper				Ranges in color from white, tan, yellowish tan to yellow or brown, and red.  Mottling is not present	Northern Alabama	Tuscaloosa Gravel Formation
Tuscumbia Chert AKA: Carmack Chert				Ranges from light to dark gray	Northern Alabama	Tuscumbia Limestone Formation