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Dravite
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Dravite — specimen 0538, photo © NMNHS
Dravite
—
specimen 0538
Origin
South America
Brazil
Data
Weight:
0.10 ct;
size:
3.43 | 2.88 | 2.64 mm;
shape:
hexagon;
colour:
medium reddish orange; very slightly brownish;
clarity:
eye clean;
cut:
excellent;
treatment:
none.
Notes
Very clean specimen; design ‘Hexaelongatis 1’, excellent cut by Tan Pen.
Other specimens
More information from ‘Classification’
Dravite
Commonly in metamorphosed
limestones
or
mafic
igneous rocks
; rarely in
pegmatites
; in
sedimentary rocks
(
Anthony et al., 2001—2005
).
Gemmology — gemstones
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