BEAUTIFUL PIECE OF RED QUARTZ OR COMPOSTELA HACINTO. EXEMPLARY WITH SMALL GEODES IN ITS INTERIOR FILLED WITH CRYSTALS, AND FINISHED IN THE SHAPE OF PINEAPPLE. PIECE FOUND IN CHELLA, VALENCIA.
Quartz is the most common mineral, the most abundant that can be found on earth.
It is composed of silicon and oxygen with SiO₂ formula.
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.
