Formula: BaMn9[(V,As)O4]6(OH)2
Origin of name: Named for the locality, Pla de Labasse deposit near the hamlet of Nabias, Central Pyrenees, France.
Crystal system: Isometric
Crystal class: 2/m 3
Twinning:
Unit cell: a = 12.845
Colour: Dark red
Diaphaneity: Transparent
Luster: Adamantine
Habit: Anhedral grains
Hardness: 4-4.5
Specific gravity:
Cleavage: None
Tenacity: Conchoidal fracture
Streak: Dark orangish yellow
Synonyms/varieties:
Comments:
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