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

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, PotosĂ­ Department, Bolivia

Minerals on Specimen

Minerals on specimen
Bournonite, Freibergite, Quartz

Related Mineral Specimens

Cosalite in Quartz
 Carrock Mine, Caldbeck Fells, Cumbria, England, Europe
A rare for the location two specimen of Cosalite from Carrock Mine, Caldbeck Fells, Cumbria....
Quartz Japan-Law Twin with Epidote
 Green Monster Mountain, Prince Of Wales Island, Alaska, USA, North America
Lustrous intergrown dark olive green crystals of Epidote with a well formed V-twin...
Quartz var Smoky Faden
 Goschenen Valley, Uri, Switzerland, Europe
A neat double stacked Quartz variety Faden from the Göschenen Valley area Uri, Switzerland both...
Schorl Tourmaline with Albite and Quartz
 Shengus, Haramosh Mts, Skardu, Baltistan, Northern Areas, Pakistan, Asia
Three well-formed prismatic crystals of lustrous black Schorl measuring to 8.4cm stand upright on...