Chenite

Formula:  Pb₄Cu(SO₄)₂(OH)₆

Origin of name:  For T. Chen

Crystal system:  Triclinic

Crystal class:  -1

Twinning:

Unit cell:

Colour:  Sky-blue

Diaphaneity:  Transparent to translucent

Luster:  Vitreous to resinous

Habit:  Crystals small, prismatic, elongated

Hardness:  2.5 (approximate)

Specific gravity:  5.98

Cleavage:  2; {100} good, {001} trace

Tenacity:

Streak:

Synonyms/varieties:

Comments: