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Cordierite — specimens [gallery view]


In thermally metamorphosed argillaceous sediments and regionally metamorphosed schists, gneisses; in mafic igneous rocks and granites (Anthony et al., 2001—2005). The gemstone bears the name iolite.
Cordierite — specimen 0025
0025
Tanzania
Cordierite — specimen 0123
0123
Tanzania
Cordierite — specimen 0214
0214
Tanzania
Cordierite — specimen 0380
0380
Tanzania
Cordierite — specimen 0381
0381
Tanzania
Cordierite — specimen 0389
0389
Tanzania
Cordierite — specimen 0390
0390
Tanzania

Cordierite — specimens — 7
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Gemmology — gemstones
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The specimens illustrated in this site do not exist in the collections of the National Museum of Natural History, Sofia.