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".	Southeastern Georgia
Andesite Generic Type					North America	Varies
Argillite (Generic Type)				Light to dark green, but may range to various shades of gray.	North America	Varies
Armuchee Chert AKA: Horse Leg, From Mountain Chert (Ridge and Valley Chert)				Black to dark or medium gray	Northwestern Georgia	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 Georgia	Bangor Limestone Formation
Bangor Limestone AKA: Colbert County Limestone				Medium gray	Northern Georgia	Bangor Limestone Formation
Black Mingo Chert				Mottled white, light tan, and gray.	Southeastern Georgia	Lang Syne Formation of the Black Mingo Group
Blushing Star Coral (Species type)				Ranges from grayish white to gray with darker "star burst" patters present.	Southwestern Georgia	Tampa Formation
Box Fire Coral (Species type)				Encrusted base with thick walled box like structure forming upward.	Southwestern Georgia	Tampa Formation
Brain Coral (Species type)				Brain like shape with ridges and deep interconnected double valleys.	Southwestern Georgia	Tampa Formation
Brier Creek Chert AKA: Stoney Bluff Chert				Ranges in color from white to cream, tan, and gray with mottling commonly present.	Southeastern Georgia
Carnelian (Generic Type)				Translucent and varies in shades from reddish brown to reddish orange.	North America	Varies
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.	Southeastern Georgia	Chattahoochee Limestone Formation
Chepultepec Chert Knox Chert Variant (Ridge and Valley Chert)				Ranges from yellow to white and oolitic	Northern Georgia	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.	Northwestern Georgia	Chickamauga Limestone Formation
Clayton Chert (Coastal Chert)				Ranges from yellow to brown, though white may occur.	Southwestern Georgia	Clayton Formation of the Midway Group
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	Northwestern Georgia	Conasauga Formation
Copper Ridge Chert Knox Chert variant (Ridge and Valley Chert)				Ranges in color from medium to dark gray to black	Northern Georgia	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.	Southern Georgia	Flint River Formation, Vicksburg Group
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 Georgia	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.	Southwestern Georgia	Tampa Formation
Georgiates				Translucent olive green.	East central Georgia	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.	Southwestern Georgia	Glendon Limestone Formation, Vicksburg Group
Ketona Chert Knox Chert variation				Light gray	Northwestern Georgia	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 Georgia	Knox Formation
Lenoir Chert				Dark Gray	Northern Georgia	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.	Central Georgia	Lisbon Limestone Formation of the Clairbourn Group
Little River Metadacite				Opalescence bluish gray quart weathering to a crusty tannish white.	East central Georgia	Little River Volcanics Series
Longview Chert Knox variation				Primarily reddish, but white to gray colors do occur	Northwestern Georgia	Longview Member of the Knox Formation
Marianne Chert AKA: Mint Springs Marl				Ranges from a white to cream color	Southwestern Georgia	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.	Southwestern Georgia	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".	Northwestern Georgia	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	Northwestern Georgia	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.	Southern Georgia	Ocala Limestone Formation, Jackson Group.
Orthoquartzite (Generic Type)				Ranges from white to tan, red green, brown, or black.	North America	Varies
Petrified Wood AKA: Agatized Wood, Opalized Wood				Vary in color based on the minerals present during the process	North America	Varies
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.	West central Georgia
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	East central Georgia
Shady Chert				Ranges from a bluish gray to a yellowish gray blue, or white with mottling commonly present.	Northern Georgia	Shady Dolomite Formation
Staghorn Coral (Species type)				Cylindrical branches	Southwestern Georgia	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	Southern Georgia	Suwannee Limestone Formation, Vicksburg Group
Tallahatta Quartz AKA: Tallahatta Sandstone, Snowflake Quartzite				Light gray arenite with white specks giving a snowflake appearance.	Southwestern Georgia	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..	Southwestern Georgia	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
Tuscaloosa Chert AKA: Red / Yellow Jasper				Ranges in color from white, tan, yellowish tan to yellow or brown, and red.  Mottling is not present	Northwestern Georgia	Tuscaloosa Gravel Formation
Tuscumbia Chert AKA: Carmack Chert				Ranges from light to dark gray	Northwestern Georgia	Tuscumbia Limestone Formation
Withlacoochee Chert Suwannee Chert variation				Ranges from a dark gray to a reddish brown in a grainstone fabric.	Southern Georgia	Suwannee Limestone Formation, Vicksburg Group