Gemmology
English | Български
Where am I? > Home > Classification > Pleonaste


Quick navigation selector

Pleonaste

An intermediate variety of the hercynite-spinel series, iron-rich spinel or magnesium-rich hercynite. Often called black spinel.

See:
Pleonaste — specimen 0385
Pleonaste — specimen 0385, photo © NMNHS

Material from ‘Repository’

12 specimens: 0384 — 0.13 ct, China; 0385 — 0.14 ct, China; 0463 — 1.41 ct, Thailand, Kanchanaburi, Bo Phloi; 0442 — 1.29 ct, Thailand, Kanchanaburi, Bo Phloi; 0648 — 1.08 ct, Thailand, Kanchanaburi, Bo Phloi; 0650 — 0.93 ct, Thailand, Kanchanaburi, Bo Phloi; 0666 — 1.42 ct, Thailand, Kanchanaburi, Bo Phloi; 0670 — 1.58 ct, Thailand, Kanchanaburi, Bo Phloi; 0665 — 1.88 ct, Thailand, Kanchanaburi, Bo Phloi; 0671 — 1.38 ct, Thailand, Kanchanaburi, Bo Phloi; 0672 — 1.36 ct, Thailand, Kanchanaburi, Bo Phloi; 0673 — 0.73 ct, Thailand, Kanchanaburi, Bo Phloi.


Gallery view