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Binghamite — specimen 0332, photo © NMNHS
Binghamite
—
specimen 0332
Origin
North America
USA, Minnesota, Crow Wing County, Cuyuna
Data
Weight:
1.22 ct;
size:
8.32 | 6.21 | 2.56 mm;
shape:
hexagon;
colour:
medium dark reddish orange; very slightly brownish;
clarity:
opaque;
cut:
excellent;
treatment:
none.
Notes
Clean specimen; design ‘Hexaelongatis Cab 2’, excellent cut by Tan Pen.
Other specimens
More information from ‘Classification’
Binghamite
A variety of chalcedony with inclusions of
goethite
and/or
hematite
.
Gemmology — gemstones
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