Shortite

Formula: Na2Ca2(CO3)3

Origin of name: for M. Short, American mineralogist

 

Crystal system: orthorhombic

Crystal class: mm2

Twinning:

Unit cell: 

 

Colour: colourless to pale yellow

Diaphaneity: transparent

Luster: vitreous

Habit: crystals wedge-shaped, tabular, equant, or short prismatic, to 15 mm, striated

Hardness: 3

Specific gravity: 2.60

Cleavage: 1; {010} distinct

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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