Gemmology
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Diaspore — specimens [gallery view]


A final product of diagenesis in bauxite deposits formed by the tropical weathering of alumino-silicate rocks; from hydrothermal alteration of aluminous minerals; a hydrothermal mineral in some alkalic pegmatites (Anthony et al., 2001—2005). The largest faceted specimen is a 157.66 carat from Turkey (Arem, 1987: 82).
Diaspore — specimen 0209
0209
Turkey
Diaspore — specimen 0464
0464
Turkey
Diaspore — specimen 0219
0219
Turkey

Diaspore — specimens — 3
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