Gemmology
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Schorl — specimen 0222, photo © NMNHS
Schorl — specimen 0222, photo © NMNHS

Schorlspecimen 0222

Origin

East Africa
Tanzania
Schorl — specimen 0222, locality map
Data

Weight: 3.37 ct; size: 14.16 | 7.63 | 3.89 mm; shape: marquise; colour: black; clarity: opaque; cut: fair; treatment: none.
Notes

Clean, opaque specimen; mixed style cut.

Other specimens
Schorl — specimen 0513

More information from ‘Classification’


In granites and granite pegmatites, high-temperature hydrothermal veins, and some metamorphic rocks (Anthony et al., 2001—2005).