Binghamite - AKA American Pietersite Rough - $12.50/pound
Locality: Minnesota
Binghamite is often called American Pietersite because it has chatoyance
like tiger eye and can look similar to pietersite. Binghamite is quite rare
and the beautiful and unusual stones cut from it sell themselves. A high
iron content gives Binghamite its beautiful red and golden colors. Similar
to the famed Australian Marra Mamba Tiger Eye, Binghamite may also contain
hematite. This material cuts and polishes similar to other materials in
the tiger eye family.
Binghamite takes a good polish with tin oxide, cerium oxide or diamond.
Mohs hardness 6.5 to 7.0.
Sample of Rough Binghamite - AKA American Pietersite from Minnesota
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Stones cut from Binghamite
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Item Number
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Description
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Weight
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Price
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Binghamite#1
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Measures approximately
7" x 3-1/2 to 2" x 1-7/8 to 1-1/2" thick. SOLD |
3.66 pounds
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$45.75
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Binghamite#2
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Two piece parcel of triangular shapes measures
approximately 4" x 2-1/4" x 1-3/8 to 7/8" thick and 3"
x 2-1/2" x 1-3/4" at the thickest point. SOLD |
1.24 pounds
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$15.50
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