SPECTACULAR TOTALLY TRANSPARENT QUARTZ CRYSTALS FROM BRAZIL. DOUBLE CRYSTALLINE FORMATION, IN THE LOWER PART WE CAN SEE LARGE SIZE SEMI-TRANSPARENT CRYSTALS, AND IN THE UPPER PART YOUNG COMPLETELY TRANSPARENT CRYSTALS. SPECTACULAR PIZZA FROM A PRIVATE COLLECTION.
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.
