Corundum (aluminum oxide) | |||
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Corundum (aluminum oxide). Description from the source: Corundum (Al2 O3 trig.), India. Rough, complete, a bit deformed, as a horn. 4,5x2x1,8 cm; 34 g. Source: Simone Citon Contributor: John Gray Acquired: 26 September, 2008 Text Updated: 28 September, 2008 Price: Trade Size: 1.75" Composition: Al2O3 | |||
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