A crystal or crystalline solid is a solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations.
CRYSTAL CATEGORIES
CRYSTAL
This Metatorbernite specimen is a true beauty.
This is a very nice specimen where the Apophyllite and Heulandite have grown on Calcite, almost like a stalactite.
Location: Charcas, San Luis Potosi, Mexico
This Smokey point has some point damage, very minor on the main crystal and a bit more noticeable on the backside secondary crystal.
