Pseudoboléite

Formula: Pb₃₁Cu₂₄Cl₆₂(OH)₄₈

Origin of name: from Greek pseudo = false and boleite

Crystal system: tetragonal

Crystal class: 4/m 2/m 2/m

Twinning: 

Unit cell: 

Colour: indigo-blue

Diaphaneity: translucent

Luster: pearly on cleavage

Habit: parallel growth on boleite

Hardness: 2.5

Specific gravity: 4.85

Cleavage: 2; {001} perfect, {101} nearly perfect

Tenacity: 

Streak: 

Synonyms/varieties:

Comments: