Formula: Pb3WO5Cl2
Origin of name: after locality Pina County, Arizona, USA
Crystal system: orthorhombic
Crystal class: mm2 or 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: yellow, orangish
Diaphaneity: transparent
Luster: adamantine
Habit: rare acicular blades crystals 0.03 by 0.01 by 0.2 mm, isolated crystals and divergent sprays
Hardness:
Specific gravity:
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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