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Grandidierite — specimens [gallery view]


A rare accessory mineral in aluminous boron-rich rocks, regionally metamorphosed under low pressure; in pegmatites, gneisses; in xenoliths (Anthony et al., 2001—2005).
Grandidierite — specimen 0744
0744
Madagascar

Grandidierite — specimens — 1
Page 1


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.