Orthopinakiolite
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 An orthorhombic-dipyramidal black mineral containing boron, iron, magnesium, manganese, and oxygen.
Etymology
For its composition related to pinakiolite with an orthorhombic crystal system.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.