Photomicrograph of andalusite grains in mica schist: Hall Mountain ridge, northeast corner of sec. 15, T. 38 N, R. 44 E. Washington. 1937.
Dates
Date Taken
1937
Summary
Photomicrograph of andalusite grains in mica schist: Hall Mountain ridge, northeast corner of sec. 15, T. 38 N, R. 44 E. Pend Oreille County, Washington. 1937. Plate 20-C, U.S.Geological Survey Professional paper 202. 1943.
Summary
Photomicrograph of andalusite grains in mica schist: Hall Mountain ridge, northeast corner of sec. 15, T. 38 N, R. 44 E. Pend Oreille County, Washington. 1937. Plate 20-C, U.S.Geological Survey Professional paper 202. 1943.
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