Collection: Lazulite

Formula: MgAl₂(PO₄)₂(OH)₂

Colour: Blue, sky-blue, bluish-white

Luster: Vitreous, Sub-Vitreous, Resinous, Greasy

Hardness: 5½ - 6

Specific Gravity: 3.122 - 3.24

Crystal System: Monoclinic

Member of: Lazulite Group

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