Natural Crystals: Clear Quartz Rough Chunks (Approx 3x4x1cm)

Clear Quartz

Clear Quartz also known as Rock Crystal ranges from white (opaque) to clear (transparent), and belongs to the rock crystal family of stones. All rock crystals are composed of SiO₂ They form according to a trigonal crystal structure, and have a hardness of 7 on the Mohs scale.