Gem, Rock, and Mineral Postage Stamps Featuring
Boltwoodite


Mineral Name: Boltwoodite

Composition: Hydrated potassium uranyl silicate hydroxide

Nomenclature: Named after the American chemist Bertram Borden Boltwood who, in 1907, developed the process of radioactive dating.

Industrial Uses: Uranium ore (minor), scientific study.

Additional Notes: Strongly radioactive.



Namibia : Scott 685 : 65 cents : 2 Jan 1991

Boltwoodite