Gemmology
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Spinel — specimens [gallery view]


A common mineral, formed at high-temperatures as an accessory in igneous rocks, principally basalts, kimberlites, peridotites, and in xenoliths; in regionally metamorphosed aluminum-rich schists; in regionally and contact metamorphosed limestones (Anthony et al., 2001—2005). The largest specimens include: Samarian spinel, over 500 carats, stored in the Central Bank of Iran, Tehran; 398.72 carat red spinel purchased in China in 1676 and stored in the Diamond Fund, Moscow; Timur ruby, 361 carats, part of the Crown Jewels of the United Kingdom.
Spinel — specimen 0477
0477
Myanmar
Spinel — specimen 0496
0496
Myanmar
Spinel — specimen 0608
0608
Myanmar
Spinel — specimen 0014
0014
Sri Lanka
Spinel — specimen 0456
0456
Sri Lanka
Spinel — specimen 0664
0664
Sri Lanka
Spinel — specimen 0041
0041
Tanzania
Spinel — specimen 0597
0597
Tanzania
Spinel — specimen 0462
0462
Myanmar
Spinel — specimen 0658
0658
Sri Lanka

Spinel — specimens — 22
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