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Almandine — specimen 0643, photo © NMNHS
Almandine
—
specimen 0643
Origin
East Africa
Madagascar
Data
Weight:
0.66 ct;
size:
5.90 | 3.89 | 2.80 mm;
shape:
octagon;
colour:
medium dark slightly purplish red; strong;
clarity:
eye clean;
cut:
excellent;
treatment:
none.
Notes
Very clean specimen; design ‘Octangulum’, excellent cut by Tan Pen.
Other specimens
More information from ‘Classification’
Almandine
The most common garnet; typically in
mica
schists
and
gneisses
, from regionally metamorphosed argillaceous sediments; in
granites
and
eclogites
; in
sedimentary rocks
(
Anthony et al., 2001—2005
).
Gemmology — gemstones
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