A highly polished transparent chunk of quartz void of fractures or inclusions. The surfce of this natural quartz mineral is subtly rippled and the underside is covered with a layer of dark coloured crystals.
Originally mined in South Africa, this is the only piece of its kind that we currently have in our collection. Our second photo was taken with the quartz upside down and the camera is pointing towards one side. 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 crystal quartz have led to it being widely used in lenses and prisms. Pliny the Elder (23 - 79 BC) the Roman author, naturalist and natural philosopher believed it was a type of ice that would never melt and this was supported by the fact that it could be found near glaciers in the Alps.
Weight (grams): 800
Size (cms): 14.3 x 9.6 x 5.8