Binghamite — specimen 0332, photo © NMNHS
Binghamite — specimen 0332
USA, Minnesota, Crow Wing County, Cuyuna
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.
Clean specimen; design ‘Hexaelongatis Cab 2’, excellent cut by Tan Pen.
More information from ‘Classification’
A variety of chalcedony with inclusions of goethite