Albrechtschraufite

Formula: Ca₄Mg(UO₂)₂(CO₃)₆F₂^.17H₂O

Origin of name:  For Albrecht Schrauf, Viennese mineralogist

Crystal system:  Triclinic

Crystal class:  -1

Twinning:

Unit cell: a = 13.562 Å, b = 13.406 Å, c = 11.636 Å, a = 115.72°, b = 107.66°, g = 92.86°

Colour:  Yellow-green

Diaphaneity:

Luster:  Vitreous

Habit:

Hardness:  2 to 3

Specific gravity:  2.5 to 2.6

Cleavage:  None

Tenacity:

Streak: White

Synonyms/varieties:

Comments: