Gemmology
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Binghamite — specimen 0332, photo © NMNHS
Binghamite — specimen 0332, photo © NMNHS

Binghamitespecimen 0332

Origin

North America
USA, Minnesota, Crow Wing County, Cuyuna
Binghamite — specimen 0332, locality map
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
Binghamite — specimen 0317

More information from ‘Classification’


A variety of chalcedony with inclusions of goethite and/or hematite.