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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