Name	Natural	Non-heat treated points	Heat treated points	Color details	Primary found in:	Associated             Formation / Member
Andesite Generic Type					North America	Varies
Argillite (Generic type)				Light to dark green, but may range to various shades of gray	North America	Varies
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.	Southern Louisiana	Catahoula Formation
Catahoula Orthoquartzite				Range from white to gray, tan, black, green, or almost clear with black angular inclusions giving a "peppered" appearance.	East central Louisiana	Catahoula 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.	Eastern Louisiana	Lafayette Gravel Formation
Cockfield Orthoquartzite				Shades of light gray with spotting of light brown commonly present commonly giving a mottling appearance.	Northeastern Louisiana	Cockfield Formation, Clairborne Group
Crystal Quartz				clear colorless stone similar to clear glass	Eastern North America
Hattiesburg Orthoquartzite				Gray opal cemented quarttztic siltstone or sandstone that may have shades of light brown or tan giving a mottled appearance.	Eastern Louisiana	Hattiesburg Formation
Lafayette Gravel Chert				Most commonly ranges from brown to tan, greyish tan, yellowish tan, or cream, less common white and black occur.	Eastern Louisiana	Lafayette Gravel Formation
Lafayette Quartzite					Northeastern Louisiana	Lafayette Gravel Formation
Novaculite (Generic Type)				Range from white to light gray or black	Northwestern Louisiana	Varies
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.	Southern Louisiana	Catahoula Formation
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
Rhyolite (Generic Type)				Gray to grayish black, flow banding may be present alternating from light to darker gray	North America	Volcanic Activity
Tuff AKA: Solidified Volcanic Ash				Contains greater than 75 volcanic ash and ranges from white to tan, gray or pink.	North America	Volcanic activity
Willis Chert				Great variation of color, most commonly shades of brown and tan, but may range to white to pink or black.  Petrified Wood also occurs.	Southwestern Louisiana	Willis Gravel Formation