Liebigite

Formula:  Ca2(UO2)(CO3)3 . 11H2O

Origin of name:  For J. von Liebig, German chemist

 

Crystal system:  Orthorhombic

Crystal class:  mm2

Twinning: 

Unit cell: a = 16.70 Å, b = 17.51 Å, c = 13.74 Å

 

Colour:  Apple-green, green to yellowish green

Diaphaneity: 

Luster:  Vitreous, pearly on cleavage

Habit:  Crystals short prismatic or equant, with rounded edges and convex or vicinal faces; granular or scaly crusts; films

Hardness:  2.5 to 3

Specific gravity:  2.41

Cleavage:  1; {100} distinct

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: 

 

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