• Bournonite and Freibergite on Quartz
  • Bournonite and Freibergite on Quartz

Bournonite and Freibergite on Quartz

$850.00   €698  £630.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC19967
Delightful, intermeshed cogwheels of bright metallic silver-grey Bournonite overgrown with granular gunmetal crystal aggregates of the silver-copper-iron-antimony-arsenic sulphosalt Freibergite sit next to 2 cm tall colourless semi-transparent Quartz crystals.  From the Viboras mine at Machacamarca, Cornelio Saavedra Province, Bolivia, the Bournonite forms characteristic cogwheel crystals to 1.4 cm across by 0.5 cm wide and is a terrific example of this much loved and sought-after habit.  There is a good coverage of both Bournonite and Freibergite on this very showy Bolivian specimen.


5.5 × 3.6 × 3.7 cm
Quartz and Agate, Sulphides, Sulphosalts and Arsenides
Viboras Mine, Machacamarca, Machacamarca District, Cornelio Saavedra Province, Potosí Department, Bolivia

Minerals on Specimen

Minerals on specimen
Bournonite, Freibergite, Quartz

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