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Schorl — specimen 0222, photo © NMNHS
Schorl
—
specimen 0222
Origin
East Africa
Tanzania
Data
Weight:
3.37 ct;
size:
14.16 | 7.63 | 3.89 mm;
shape:
marquise;
colour:
black;
clarity:
opaque;
cut:
fair;
treatment:
none.
Notes
Clean, opaque specimen; mixed style cut.
Other specimens
More information from ‘Classification’
Schorl
In
granites
and granite
pegmatites
, high-temperature hydrothermal veins, and some
metamorphic rocks
(
Anthony et al., 2001—2005
).
Gemmology — gemstones
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