primarily in the region of the Czech Republic

This is an attractive specimen consisting of natural pale gray transparent crystals of Calcite on a green crystal matrix from Morocco

89 grams and measuring 45x38x32 mm

This fascinating meteorite was mainly found as small individuals and the total weight of the 100's of pieces recovered is recorded as a low 25 kg

The color of apatite cat's eye can vary

Olivine Volcanic Bomb | Lava Coated Crystal | 150 gr | Mt Shadwell Volcano, Australia Fluor-Richterite primarily in the region ofAn olivine volcanic bomb is a type of volcanic rock that contains olivine crystals and has been ejected during a volcanic eruption. Olivine is a mineral that is commonly found in the Earth's mantle and is one of the first minerals to crystallize as magma cools. Volcanic bombs are large clots of lava that are ejected from a volcano during an explosive eruption. They can vary in size, and their shapes are often streamlined due to their molten nature as