Prehnite on Quartz Matrix, Specimen from Xoboxobos, Brandberg District, Namibia

Description

Prehnite on Quartz Matrix, Specimen from Xoboxobos, Brandberg District, Namibia

This is a beautiful Prehnite piece on Quartz from Xoboxobos, Brandberg District, Namibia. The Quartz has areas of Druzy formation.

Crystal Dimensions: 7.6 cm (3”) x 6.4 cm (2.51”)

Crystal Weight: 104 grams

Prehnite is a pale yellow-green stone made primarily of calcium and aluminum.

Some forms have iron in them as well, which causes a darker orange-yellow colour, but the majority are quite pale and milky, not at all see-through.

The chemical formula is:

Ca2Al(AlSi3O10)(OH)2