Lawsonbauerite

Formula:  (Mn,Mg)9Zn4(SO4)2(OH)22 . 8H2O

Origin of name:  For Lawson H. Bauer, American chemist

 

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning: 

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Colour:  Colourless to white

Diaphaneity: 

Luster: 

Habit:  Crystals prismatic and bladed, elongated on b-axis, to 0.5 mm

Hardness:  ~ 4.5

Specific gravity:  2.87

Cleavage:  None

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