Complete crystal of historic fluorite from La Viesca mine, Asturias. Bicolor, fluorescent, multi-beveled, dodecahedral Piece of a very good size extracted from the first geode found in the old and famous mine of La Viesca. Without breaks and has tectonic fractures that create beautiful incidents and color changes depending on the light.
Fluorite is a group III mineral (halides) that according to the Strunz classification, formed the elements calcium and fluorine.
Its structure belongs to the cubic system, and it appears with a cubic, octahedral, and rhombododecahedral habit.
Fluorite has physical thermoluminescence and fluorescence properties.
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 mineral much appreciated by museums and private collectors.
