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


Quick navigation selector

Psilomelane

Obsolete group name for manganese oxides; mainly romanèchite in chalcedony.


Material from ‘Repository’

3 specimens: 0724 — 2.07 ct, Mexico; 0725 — 1.53 ct, Mexico; 0323 — 2.65 ct, Mexico.


Gallery view