GLENDALE COMMUNITY COLLEGE

EARTH SCIENCE IMAGE ARCHIVE

ASTRONOMY    GEOLOGY    METEOROLOGY    MUSEUM TOUR    PHS 120    PHS 120 ONLINE   HOME

Boleite Pictures

BACK TO A,B,C

A single cube of Boleite with its corners truncated by octahedral faces, from Mexico.

CHEMISTRY  Pb₂₆Ag₁₀Cu₂₄Cl₆₂(OH)₄₈ ^. 3H₂O

CRYSTALLOGRAPHY  Isometric (Cubic)

CRYSTAL GROWTH AND HABITS  Normally boleite forms cubes modified by octahedrons or dodecahedrons.

COLOR AND OTHER OPTICAL PROPERTIES  Dark blue, transparent to opaque

HARDNESS  3 - 3.5        

SPECIFIC GRAVITY  5.0 - 5.1       

LUSTER  Sub-vitreous to pearly     

STREAK  Light blue

OCCURRENCE  Boleite is a secondary mineral formed through aqueous solutions containing chlorine and acting in the oxidized zone of lead-copper deposits.

ASSOCIATED MINERALS  Pseudoboleite, Cumengeite, Atacamite, Anglesite, Cerussite, Gypsum