DescriptionGraphite (Ceylon) 31.jpg English: Graphite from Ceylon (Sri Lanka). A mineral is a naturally-occurring, solid, inorganic, crystalline substance...
DescriptionGraphite (Ceylon) 17.jpg English: Graphite from Ceylon (Sri Lanka). A mineral is a naturally-occurring, solid, inorganic, crystalline substance...
DescriptionGraphite (Ceylon) 30.jpg English: Graphite from Ceylon (Sri Lanka). A mineral is a naturally-occurring, solid, inorganic, crystalline substance...
Graphite. Colombo Mines, (Ceylon) Sri Lanka (DerHexer) 2012-07-20.jpg English: Harvard Museum of Natural History. Graphite. Colombo Mines, (Ceylon) Sri...
in artist's hand in graphite, center left: "[Ceylon]"; in artist's hand in graphite, center: "Coutts"; in artist's hand in graphite, center left "Woodford...
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_Sri_Lanka_(DerHexer)_2012-07-20.jpg){kind=link}
