Oxammite

Formula: (NH4)2C2O4.H2O

Origin of name: from oxalate and ammonium

 

Crystal system: orthorhombic

Crystal class: 222

Twinning: 

Unit cell: 

 

Colour: colourless to yellowish white

Diaphaneity: transparent

Luster: 

Habit: crystals rare, massive, lamellar, pulverulent

Hardness: 2.5

Specific gravity: about 5

Cleavage: 1; {001} distinct

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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