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Zircon — specimen 0521, photo © NMNHS
Zircon
—
specimen 0521
Origin
Southeast Asia
Cambodia
Data
Weight:
0.43 ct;
size:
4.37 | 4.08 | 2.64 mm;
shape:
octagon;
colour:
colourless;
clarity:
eye clean;
cut:
excellent;
treatment:
heating.
Notes
Very clean specimen; design ‘Eight’ by Glenn & Martha Vargas, excellent cut by Tan Pen.
Other specimens
More information from ‘Classification’
Zircon
An accessory mineral in
igneous
and
metamorphic rocks
, with crystals reaching large size in
mafic
pegmatites
and
carbonatites
; in
sedimentary rocks
and alluvial sands (
Anthony et al., 2001—2005
).
Gemmology — gemstones
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