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The Crystal Cave
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Aventurine
SiO2
Silicates.
Appearance: Appears as massive masses of green crome quarts, that gives a spangled green or brownish-yellow look. Can even be blue. Normally used as a gem stone.
Hardness: 7.
SG: 2,6
Translucent or semitransparent.
Crystal system: Trigonal, hexagonal, crypto crystaline.
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This page was last changed on:
Nov 29 2002
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Copyright (c)
Umeå Mineral & Kristall KB, Sweden
2000-2005
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