Gulf Coast Region Licthic Materials

Materials Identification Guide

Gulf Coast Region Lithic Material

Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated Formation / Member
Allendale Chert (Coastal Chert)				Primarily tan to brown in various shades of "earth tones".	Georgia, South Carolina
Andesite Generic Type					North America	Varies
Argillite (Generic Type)				Light to dark green, but may range to various shades of gray.	North America	Varies
Bay Bottom Chert				Peloidal packstone ranging from a white to brown, light gray, or dark gray. Clear chalcedony can replace fossils or vugs.	Florida	Tampa Limestone Member of the Arcadia Formation, Hawthorne Group
Black Mingo Chert				Mottled white, light tan, and gray.	South Carolina, Georgia	Lang Syne Formation of the Black Mingo Group
Blue Gray Fort Payne Chert				Opaque gray to bluish gray, or black with tan patches. White fossil specks are usually present	Tennessee, Alabama, and Mississippi	Fort Payne Formation
Blushing Star Coral (Species type)				Ranges from grayish white to gray with darker "star burst" patters present.	Florida, Georgia, Alabama	Tampa Formation
Box Fire Coral (Species type)				Encrusted base with thick walled box like structure forming upward.	Florida, Georgia, Alabama	Tampa Formation
Brain Coral (Species type)				Brain like shape with ridges and deep interconnected double valleys.	Florida	Tampa Formation
Brier Creek Chert AKA: Stoney Bluff Chert, Red Bluff Chert				Ranges in color from white to cream, tan, and gray with mottling commonly present.	Georgia, South Carolina	Possible Suwannee Limestone Formation
Brierfield Chert				Ranges from a medium to dark blue gray in color characterized by chert with irregular cavities.	Alabama	Brierfield Dolomite Formation
Brooksville Chert Suwannee Chert variation				Ranges from a light gray, pale tan, or pink with abundant fossils	Florida	Suwannee Limestone Formation, Vicksburg Group
Caladesi Chert Tampa Chert variation				Ranges from a dark gray to black or brown with light gray also occurring with chalcedony filled vugs commonly present.	Florida	Tampa Limestone Member of the Arcadia Formation, Hawthorne Group
Carnelian (Generic Type)				Translucent and varies in shades from reddish brown to reddish orange.	North America	Varies
Catahoula Petrified Wood				Includes petrified elm, oak, hickory, and palm wood and contains shades of white, brown, cream, and tan with wood grain or rings present.	Louisiana, Texas	Catahoula Formation
Catahoula Orthoquartzite				Range from white to gray, tan, black, green, or almost clear with black angular inclusions giving a "peppered" appearance.	Mississippi, Louisiana	Catahoula Formation
Chattahoochee Chert (Coastal Chert)				Ranges from brown to a creamy tan with dark gray, black, and bluish white also occurring. Clear chalcedony and mottling commonly occurs.	Georgia, South Carolina	Chattahoochee Limestone Formation
Cheaha Quartzite				Ranges in color from a white to light gray	Alabama	Cheaha Quartzite Member of the Talladega Formation
Citronelle Chert Lafayette Chert variation AKA: Calcasieu Chert				Great variation and can range form most commonly shades of brown and tan, but may range to white to pink or black.	Louisiana, Mississippi	Lafayette Gravel Formation
Clayton Chert (Coastal Chert)				Ranges from yellow to brown, though white may occur.	Mississippi, Alabama, Georgia	Clayton Formation of the Midway Group
Cockfield Orthoquartzite				Shades of light gray with spotting of light brown commonly present commonly giving a mottling appearance.	Louisiana, Mississippi	Cockfield Formation, Clairborne Group
Cow House Creek Chert Tampa Chert variation				Ranges from tans to browns with chalcedony filled vugs commonly occuring.	Florida	Tampa Limestone Member of the Arcadia Formation, Hawthorne Group
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.	Alabama, Georgia, Florida, South Carolina	Flint River Formation, Vicksburg Group
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.	Florida, Georgia, Alabama	Tampa Formation
Georgiates				Translucent olive green.	Georgia, South Carolina	Chesapeake Bay Impact
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.	Alabama, Georgia, Florida	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.	Mississippi, Alabama, Louisiana, Florida	Hattiesburg Formation
Hillsborough Chert Tampa Chert variation				Ranges from tan to brown with medium to dark gray also occurring. Chalcedony or quartz lined vugs commonly present	Florida	Tampa Limestone Member of the Arcadia Formation, Hawthorne Group
Jemison Chert				Commonly a light gray with iron staining.	Alabama	Jemison Chert Formation, Talladega Group
Kalona Quartzite				Ranges from a light gray to a light brown or white.	Alabama	Kalona Quartzite Member, Wash Creek Slate Formation,
Kosciusko Quartzite				Ranges from gray to a whitish gray or whitish brown. Mottling or light reddish iron staining may be present.	Mississippi	Kosciusko Formation
Lafayette Gravel Chert				Most commonly ranges from brown to tan, greyish tan, yellowish tan, or cream, less common white and black occur.	Missouri, Illinois, Arkansas, Louisiana, Mississippi	Lafayette Gravel Formation
Lafayette Quartzite					Missouri, Illinois, Arkansas, Louisiana, Mississippi, Tennessee	Lafayette Gravel 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.	Georgia, Alabama, South Carolina	Lisbon Limestone Formation of the Clairbourn Group
Little River Metadacite				Opalescence bluish gray quart weathering to a crusty tannish white.	Georgia, South Carolina	Little River Volcanics Series
Marianne Chert AKA: Mint Springs Marl				Ranges from a white to cream color	Alabama, Florida, Mississippi, Georgia	Mint Springs Marl Member of the Marianna Limestone Formation, Vicksburg Group
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	Illinois, Kentucky, Missouri, Mississippi, Arkansas	Salem / Ullim Limestone Formation
Mountainous Star Coral Orbicella Faveolata (Species type)				Solid, very large dome or stumped shaped with small lumps, bulges, or lobes.	Florida, Georgia, Alabama	Tampa 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	Georgia, Alabama	Newala Limestone Formation
Novaculite (Generic Type)				Range from white to light gray or black	Louisiana	Varies
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.	Alabama. Georgia, Florida	Ocala Limestone Formation, Jackson Group.
Orthoquartzite (Generic Type)				Ranges from white to tan, red green, brown, or black.	North America	Varies
Palmwood AKA: Petrified Palmwood				Ranges from white to yellowish white or cream with specks or streaks of brown to yellowish brown.	Louisiana, Mississippi	Catahoula Formation
Peace River Chert				Opaline chert that ranges from a dark gray to brown	Florida	Peace River Formation, Hawthorne Group
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.	Alabama, Mississippi
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.	Georgia, Alabama
Rhyolite (Generic Type)				Gray to grayish black, flow banding may be present alternating from light to darker gray	North America	Varies
Savannah River Agate				Ranges from a light grayish brown or grayish white to a yellowish brown with vugs and mottling commonly present	Georgia, South Carolina
Staghorn Coral (Species type)				Cylindrical branches	Florida, Georgia, 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	Georgia, Florida, Alabama, South Carolina	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.	Alabama, Mississippi, Georgia, Florida	Tallahatta Formation, Clairborne Group
Tallahatta Quartz AKA: Tallahatta Sandstone, Snowflake Quartzite				Light gray arenite with white specks giving a snowflake appearance.	Alabama, Mississippi, Georgia, Florida	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..	Georgia, Florida, 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
Withlacoochee Chert Suwannee Chert variation				Ranges from a dark gray to a reddish brown in a grainstone fabric.	Florida, Georgia	Suwannee Limestone Formation, Vicksburg Group