Prehnite
Prehnite Products
Global Mining Sites
Prehnite is found in South Africa, China, Australia, Mali, Scotland, Tanzania and USA.
History
It was officially named in 1788 by Abraham Gottlieb Werner in honour of the Dutch Colonel Hendricks Von Prehn, who is credited with discovering the mineral in 1774 at the Cape of Good Hope in South Africa.
Appearance
Prehnite is a calcium aluminium silicate with an orthorhombic crystal structure. It is commonly found in large granular habits but is also found in prismatic or pyramidal form. It’s colour is a pale green, but is also found in yellow, grey or white: semitransparent, translucent.