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Copper, crystal habit

Chalcocite [22205-45-4] [Named from the Greek, chalkos, copper] (ICSD 100333 and PDF 33-490) Cu,S Ms 159.158 79.85 wt.% Cu 20.15 wt.%S (Sulfides and sulfosalts) Orthorhombic as 1188.1 pm bs 273.23 pm cs 1349.1 pm (Zs 96) Cuprite type Biaxial R = 32.2% 2.5-3 (HV 68-98) 5800 Habit massive, granular, euhedral crystals. Color black or iron black. Luster metallic. Diaphaneity opaque. Streak grayish black. Qea ige 110 indistinct. Twinning II0, 032, 112. Fracture Conchoidal. Occurrence secondary mineral in/near the oxidized zone of copper sultide ore deposits. Others p-type semiconductor with = 0.06 eV-0.13eV. Electrical resistivity 80 to 100 jQ.cm.> melting point of 1100 C... [Pg.816]

See other pages where Copper, crystal habit is mentioned: [Pg.120]    [Pg.82]    [Pg.103]    [Pg.324]    [Pg.1274]    [Pg.1001]    [Pg.309]    [Pg.251]    [Pg.344]    [Pg.411]    [Pg.241]    [Pg.807]    [Pg.816]    [Pg.177]    [Pg.237]    [Pg.325]   
See also in sourсe #XX -- [ Pg.20 ]



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