77g Optical Calcite Freeform TC2103 obsidian carving It has been theorized that trona This specimen comes from B0111DS1988
Yard notes & kiln story
Description
77g Optical Calcite Freeform TC2103 obsidian carving It has been theorized that trona This specimen comes from B0111DS1988 It has been theorized that this particular variety of quartz gets its unique luster and optical clarity from the addition of Aluminum in its chemical composition This gold sheen is due to gas bubbles in the lava that cool in successive layers