en optic axis (n)
― HasContext ⟶
Weight: 1.0
en mineralogy Source: English Wiktionary
en trioctahedral (a)
― HasContext ⟶
Weight: 1.0
en mineralogy Source: English Wiktionary
en cherty (a)
― HasContext ⟶
Weight: 1.0
en mineralogy Source: English Wiktionary