Chloroxiphite

Formula:  Pb₃CuCl₂(OH)₂O₂

Origin of name:  From Greek for green and blade

Crystal system:  Monoclinic

Crystal class:  2/m

Twinning:

Unit cell: a = 10.458, b = 5.75, c = 6.693, β = 97.79°

Colour:  Dull olive-green, emerald-green

Diaphaneity:  Translucent

Luster:  Resinous to adamantine

Habit:  Crystals bladed, elongated along c-axis, flattened

Hardness:  2.5

Specific gravity:  6.93

Cleavage:  2; {-101} perfect, {100} distinct

Tenacity: Brittle

Streak:  Pale yellowish green

Synonyms/varieties:

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