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Dravite
Dravite
11
listings
135
in gallery
Market data
About Dravite
Formula
NaMg
3
Al
6
(Si
6
O
18
)(BO
3
)
3
(OH)
3
(OH)
Mineral guide
Learn about Dravite
Dravite: sodium–magnesium tourmaline with sharp trigonal prisms and hues from honey-yellow to chrome-green; forms in metamorphic marbles and offers classic cry…