Formula: Hg2I2
Origin of name: After locality; Moschellandsberg, Rheinland-Phalz, Germany
Crystal system: Tetragonal
Crystal class: 4/m 2/m 2/m
Twinning:
Unit cell:
Colour: Yellow
Diaphaneity: Translucent
Luster: Adamantine
Habit: Tabular to short prismatic crystals 0.1 mm as crusts and plates
Hardness: 1 to 2
Specific gravity:
Cleavage: 1; imperfect
Tenacity:
Streak: Brown
Synonyms/varieties:
Comments: Iodine analogue of calomel
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