Gem, Rock, and Mineral Postage Stamps Featuring

Mineral Name: Sunstone

Composition: Sodium-calcium aluminum silicate

Nomenclature: Named after the reddish reflection produced when the stone is turned in the light.

Industrial Uses: Gemstone.

Additional Notes: A gem variety of oligoclase, a member of the Feldspar group of minerals. Sunstone contains minute, aligned plates of hematite that produce a spangled, reddish reflection when the stone is turned.

Malawi : Scott 371 : 10 tambala : 20 Aug 1980

Sunstone (oligoclase feldspar)