George Switzer (mineralogist)

American geochemist and mineralogist, U.S. Geological Survey

Mineralogist, petrologist, geologist

Geologist, minerologist

Norwegian-American mineralogist and educator

Geologist and mineralogist, California Division of Mines and Geology, San Francisco

American mineralogist

Specialist in phyllosilicates, department of geology and geophysics, University of Wisconsin, Madison, Wisconsin

Russian mineralogist

US professor of mineralogy and curator of the South Dakota School of Mines mineral museum

American mineralogist

American university teacher

Russian mineralogist

American mineralogist

Amateur mineralogist from San Anselmo, California

American mineralogist, professor of geology, Lafayette College, Easton, Pennsylvania

Analytical chemist and mineralogist for the U.S. Geological Survey

American mineralogist