Prehnite on Quartz Matrix, Specimen from Xoboxobos, Brandberg District, Namibia
This is a beautiful Prehnite piece on Quartz from Xoboxobos, Brandberg District, Namibia.
Crystal Dimensions: 4 cm (1.6”) x 3.4 cm (1.33”)
Crystal Weight: 43.69 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
