Chernikovite

Formula:  (H₃O)₂(UO₂)₂(PO₄)₂ ^. 6H₂O

Origin of name:  For A. Chernikov

Crystal system:  Tetragonal

Crystal class:  4/m 2/m 2/m

Twinning:

Unit cell:

Colour:  Pale yellow

Diaphaneity:  Transparent

Luster:  Vitreous

Habit:  Mica-like thin plates

Hardness:

Specific gravity:  3.39

Cleavage:  2; {001} perfect, a {100} imperfect

Tenacity:

Streak:

Synonyms/varieties:

Comments:  Fluoresces intense yellow-green