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Dravite
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Dravite — specimen 0563, photo © NMNHS
Dravite
—
specimen 0563
Origin
Central Africa
Democratic Republic of the Congo
Data
Weight:
0.20 ct;
size:
4.17 | 3.61 | 2.43 mm;
shape:
hexagon;
colour:
medium light orangey yellow; very slightly brownish;
clarity:
eye clean;
cut:
excellent;
treatment:
none.
Notes
Very clean specimen; design ‘Hexamixtum S 41-32’, 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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