Leonite

Formula:  K2Mg(SO4)2 . 4H2O

Origin of name:  For Leo Stipplemann, German mine director

 

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning: 

Unit cell: 

 

Colour:  Colourless, yellowish

Diaphaneity:  Transparent

Luster:  Vitreous to waxy

Habit:  Crystals tabular, elongated on c-axis; irregular grains

Hardness:  2.5 to 3

Specific gravity:  2.20

Cleavage:  None

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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