Formula: MgB2O4.3H2O
Origin of name: for Mr. Pinno, German mining official
Crystal system: tetragonal
Crystal class: 4
Twinning:
Unit cell:
Colour: yellow, yellowish green
Diaphaneity: translucent
Luster: vitreous
Habit: crystals short prismatic, elongated parallel to c-axis, rare, massive crystalline or fine granular radial fibrous nodular
Hardness: 3.5
Specific gravity: 2.29
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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