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Prehnite — specimens [gallery view]


A secondary or hydrothermal mineral in veins and cavities in mafic volcanic rocks; less commonly in granite, gneiss or syenite (Anthony et al., 2001—2005).
Prehnite — specimen 0108
0108
South Africa
Prehnite — specimen 0109
0109
South Africa
Prehnite — specimen 0309
0309
South Africa
Prehnite — specimen 0090
0090
South Africa
Prehnite — specimen 0160
0160
South Africa
Prehnite — specimen 0540
0540
Mali

Prehnite — specimens — 6
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.