Formula: (NH4,K)Na(SO4) . 2H2O
Origin of name: For John LeConte, American entomologist
Crystal system: Orthorhombic
Crystal class: 222
Twinning:
Unit cell:
Colour: Colourless
Diaphaneity: Transparent
Luster: Vitreous
Habit: Crystals long prismatic, narrow or stubby; massive, fine-grained
Hardness: 2 to 2.5
Specific gravity: 1.745
Cleavage: 1; {011} distinct
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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