Fluorite - Mineral activity Description: Scyphocrinites crinoids were animals

Description: Scyphocrinites crinoids were animals that were rooted to the seafloor by a stem and filtered the water for food by many armoured feeding arms

I tear apart the plaster mold and withdraw my metal master copy

Mangano calcite is a manganese-rich variety of calcite (CaCO₃ with Mn²⁺) that often forms in low-temperature hydrothermal environments

Smokey Quartz

but much rarer to find

Fluorite - Mineral activity Description: Scyphocrinites crinoids were animalsMined from: Xiang Hualing Mine, Hunan, China Description: This fluorite specimen comes from the Xianghualing Mine in Hunan, China, a locality known for producing high quality cubic fluorite. The piece features sharp, pale green fluorite cubes with a natural matte surface, giving them a soft, frosted appearance. Scattered throughout are a few slender quartz points, offering contrast in both shape and luster. The crystals are well formed with clean