Gem, Rock, and Mineral Postage Stamps Featuring

Mineral Name: Tanzanite

Composition: Calcium aluminum silicate hydroxide

Nomenclature: Named after Tanzania, a source of this gemstone.

Industrial Uses: Gemstones.

Additional Notes: The blue, gem variety of zoisite. A member of the epidote group of minerals.

Tanzania : Scott 312 : 5 shilling : 22 May 1986

Zoisite (tanzanite)