DescriptionGraphite (Ceylon) 10.jpg English: Graphite from Ceylon (Sri Lanka). A mineral is a naturally-occurring, solid, inorganic, crystalline substance...
DescriptionGraphite with pyrite nodule (Ceylon) 2.jpg English: Graphite with pyrite nodule from Ceylon (Sri Lanka). A mineral is a naturally-occurring...
This file has an extracted image: Outline map of the Peruvian Expedition of 1912.jpg....
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