Curienite

Formula:  Pb(UO₂)₂V₂O₈ ^. 5H₂O

Origin of name:  For Hubert Curien, French crystallographer

Crystal system:  Orthorhombic

Crystal class:  2/m 2/m 2/m

Twinning:

Unit cell: a = 10.40 Å, b = 8.45 Å, c = 16.34 Å

Colour:  Canary-yellow

Luster:

Habit:  Powdery, micro-crystalline

Hardness:

Specific gravity:  4.88

Cleavage:

Tenacity:

Streak:

Synonyms/varieties:

Comments:  Series with francevillite