SPECTACULAR DOUBLE-SIDED FLUORITE WITH DIFFERENT TYPES OF CRYSTALLIZATION AND SHADE. IN THE CENTRAL PART WE OBSERVE LARGE BEVELLED CRYSTALS AND IN THE LOWER PART OPAQUE CRYSTALS WITH ATYPICAL SHAPES. ON THE BACK WE SEE GLASS WITH A BLUE SHADE AND SOME MIXED WITH VARIOUS COLORS. HISTORICAL PIECE OF LA VIESCA THAT WE NOW HAVE FOR SALE.
Fluorite is a mineral of group III (halides) that, according to the Strunz classification, forms the elements calcium and fluorine.
Its structure belongs to the cubic system, and it appears with cubic, octahedral and rhombododecahedral habit.
Fluorite presents physical properties of thermoluminescence and fluorescence.
In industry, it is mainly used in iron and steel metallurgy. It is used as a source of fluorine and hydrofluoric acid, also in the glazing of ceramics and in the manufacture of optical glasses.
The beauty of the specimens makes it a highly appreciated mineral by museums and private collectors.
