QUARTZ CRYSTALS FROM THE MASABE QUARRY IN SILS, RIUDARENES, GIRONA PROVINCE. VERY GOOD QUALITY OF THESE TWO SAMPLES OF GLASS ON MATRIX THAT WE PRESENT YOU FOR SALE. PRIVATE COLLECTION PIECE. GRANA SIZE CRYSTALS AND VERY GOOD CRYSTALLINE PERFECTION
Quartz is the most common mineral, the most abundant that can be found on earth.
It is composed of silicon and oxygen with the formula SiO₂.
According to the Nickel-Strunz classification, quartz belongs to the class of oxides, while in the Dana classification, it is considered a tectosilicate.
There are multiple varieties of quartz , colors and types.
