Caracolite

Formula:  Na₃Pb₂(SO₄)₃Cl

Origin of name:  For locality; Caracoles, Chile

Crystal system:  Monoclinic pseudo-hexagonal

Crystal class:  2/m

Twinning:

Unit cell:

Colour:  Colourless, grayish, greenish

Diaphaneity:  Transparent

Luster:  Vitreous

Habit:  Crystals imperfect hexagonal prisms; crystalline incrustations

Hardness:  4.5

Specific gravity:  5.10

Cleavage:  None

Tenacity:

Streak:

Synonyms/varieties:

Comments: