Maricopaite

Formula:  Pb₇Ca₂Al₁₂Si₃₆O₁₀₀ ^. 32H₂O

Origin of name:  After locality; Maricopa County, Arizona

Crystal system:  Orthorhombic

Crystal class:  mm2

Twinning: 

Unit cell: 

Colour:  White

Diaphaneity:  Translucent

Luster:  Silky to vitreous

Habit:  Acicular, mostly subhedral in sprays

Hardness:  1

Specific gravity:  2.94

Cleavage:  1; {010} imperfect

Tenacity: 

Streak: 

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