Gem, Rock, and Mineral Postage Stamps Featuring
Zoisite


Mineral Name: Zoisite

Composition: Calcium aluminum silicate hydroxide

Nomenclature: Named after Baron von Zois, an Austrian natural scientist, who discovered the mineral.

Industrial Uses: Gemstones.

Additional Notes: A member of the Epidote group of minerals. The blue, gem variety of zoisite is called tanzanite; the red, gem variety of zoisite is named thulite; and the green, gem variety of zoisite is called anyolite.



Tanzania : Scott 312 : 5 shilling : 22 May 1986

Zoisite (tanzanite)