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Oligoclase — specimens [gallery view]


A variety of albite; plagioclase feldspar with an albite:anorthite molar ratio ranging from 90:10 to 70:30.
Oligoclase — specimen 0072
0072
Madagascar
Oligoclase — specimen 0274
0274
Madagascar
Oligoclase — specimen 0285
0285
Madagascar
Sunstone — specimen 0622
0622
Africa
Sunstone — specimen 0623
0623
Africa

Oligoclase — specimens — 5
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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.