Highly polished chunk of quartz almost completely transparent and void of fractures or inclusions. The surface of this natural mineral is subtly rippled and the underside is covered with a layer of dark coloured crystals.
Originally mined in South Africa, this piece is sure to be appreciated by anyone who loves the mineral quartz.
Colourless varieties of quartz which are transparent or translucent may also be known as rock crystal.
Our second photo was taken whilst this chunk of quartz was upside down and the camera is pointed at one side of the mineral. The brown colouration which appears to be within the rock is actually a reflection of the crystals which cover the base.
Quartz is the third most common mineral in the earth's crust after ice and feldspar. The optical and electrical properties of the mineral quartz have led to it being widely used in lenses and prisms. The Roman author, naturalist and philosopher believed quartz was a type of ice that would never melt and and the fact that it could be found near glaciers in the Alps supported his theory.
Weight (grams): 800
Size (cms): 14.3 x 9.6 x 5.8