Phurcalite

Formula: Ca2(UO2)3(PO4)2(OH)4.4H2O

Origin of name: from elements in composition

 

Crystal system: orthorhombic

Crystal class: 2/m 2/m 2/m

Twinning: 

Unit cell: 

 

Colour: yellow

Diaphaneity: 

Luster: vitreous to adamantine

Habit: crystals tabular, to 1 mm

Hardness: 3

Specific gravity: 4.14

Cleavage: 3; {010} perfect, {100} good, {001}

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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