Hauckite

Formula:  (Mg,Mn)24Zn18Fe3(SO4)4(CO3)2(OH)81

Origin of name:   For R. Hauck, American mineral collector

 

Crystal system:  Hexagonal

Crystal class:  6/m 2/m 2/m

Twinning: 

Unit cell: 

 

Colour:  Orange to yellow

Diaphaneity: 

Luster: 

Habit:  Crystals tabular, in rosette-like groups

Hardness:  2 to 3

Specific gravity:  3.02

Cleavage:  1; {0001} perfect

Tenacity: 

Streak:  Light yellow

 

Synonyms/varieties:

 

Comments: 

 

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