Gemmology
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Specimens of gemstones by colour: black [gallery view]

Pleonaste — specimen 0384
Pleonaste — specimen 0385
Pleonaste — specimen 0463
Pleonaste — specimen 0442
Pleonaste — specimen 0648
Pleonaste — specimen 0650
Pleonaste — specimen 0666
Pleonaste — specimen 0670
Pleonaste — specimen 0665
Pleonaste — specimen 0671
Pleonaste — specimen 0672
Pleonaste — specimen 0673
Obsidian — specimen 0617
Morion — specimen 0135
Morion — specimen 0136
Melanite — specimen 0067
Melanite — specimen 0515
Melanite — specimen 0517
Melanite — specimen 0634
Melanite — specimen 0641

Specimens of gemstones by colour: black — 24
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