VERY GOOD PIECE OF FLUORITE CRYSTALS FROM THE BERTA QUARRY IN PAPIOL, BARCELONA. WE CAN OBSERVE IN THIS PIECE THE TYPICAL CRYSTALS OF THIS AREA WITH THE GREEN SHADE OF FLUORITE MIXED WITH SMALL PYRITES AND CALCITE ON THE FLUORITE CRYSTALS.
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.
