Specific Gravity: 2,65
Crystal System: trigonal
Index of Refraction : 1,544-1,553
Transparency: from transparent to opaque
Quartz is composed of silicon dioxide/silicate. Color range is from the colorless variety is called Clear Quartz or. Crystal Rock, the pink variety is referred to as Rose Quartz, the brown variety takes the name of Smoky Quartz, while the black one is known as Morion .Quartz is the most common mineral on the Earth's Crust.