BERTRANDITE

Connecticut North & Central Americas United States

4302 BERTRANDITE, Bierman Quarry, Bethel, Fairfield County, Connecticut, U.S.A.

September 28, 2019

Asia Kazakhstan

3146 BERTRANDITE, PYRITE, Kara-Oba W Deposit, Betpakdala Desert, Karagandy Province, Kazakhstan

September 28, 2019

Brazil South America

1796 BERTRANDITE, Golconda Pegmatite, Golconda District, Governador Valadares, Doce Valley, Minas Gerais, Brazil

September 28, 2019

Localities