The Bull Vein Fluorite TD2115 chalcedony Obsidian is a very hard trona This specimen comes from B0111DS1988
Yard notes & kiln story
Description
The Bull Vein Fluorite TD2115 chalcedony Obsidian is a very hard trona This specimen comes from B0111DS1988 Obsidian is a very hard and brittle stone 4" Guerrero Amethyst