BGAEU 248
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File
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1911-01-01 - 1911-12-31
Part of Ethnological Museum, National Museums in Berlin
description: "Note on the paper:" Rock of gneiss granite in Mabama, 1 - 2 day marches west of Tabora. The feldspars are oriented towards NW. By placing gneiss granite on the corridors of a pegmatitic rock, they run from NO. to SW. "Photography