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Bournonite (excellent “cogwheel”) on Pyrite
Bournonite (excellent “cogwheel”) on Pyrite Bournonite (excellent “cogwheel”) on Pyrite Bournonite (excellent “cogwheel”) on Pyrite Bournonite (excellent “cogwheel”) on Pyrite
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Bournonite (excellent “cogwheel”) on Pyrite

Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
minID: 8AF-XNT
40mm x 27mm x 17mm
$950
Without question, this is one of the finest matrix “cogwheel” Bournonites that I have handled/owned and offered for sale. I honestly don’t keep much from Bolivia for my personal collection, and I almost never keep the best piece from any lot, but this one was really special, so much so that I
Data last checked on 14th Sep 2021 - specimen may no longer be available

Ref: 807621198
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See Also

Bournonite (unique specimen)
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$800
103mm x 65mm x 27mm
Bournonite
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$600
34mm x 25mm x 4mm
Bournonite
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$500
42mm x 26mm x 25mm
Bournonite
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$375
31mm x 30mm x 19mm
Bournonite (“cogwheels”)
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$350
37mm x 20mm x 12mm
Bournonite (“cogwheel”-esque twins)
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$325
29mm x 22mm x 19mm
Bournonite on Quartz
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$300
62mm x 54mm x 32mm
Bournonite on Quartz
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$225
29mm x 16mm x 15mm
Bournonite (“cogwheel”) on matrix
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$125
91mm x 47mm x 38mm
Bournonite with Pyrite, Quartz
Viboras mine, Potosi, Bolivia
$50
50mm x 50mm x 30mm
Bournonite with Galena and Pyrite
Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department  Peru
$429 *
55mm x 41mm x 47mm
Bournonite with Sphalerite and Pyrite
Herja Mine, Chiuzbaia, Baia Sprie, Maramures  Romania
$655 *
115mm x 102mm x 41mm
Bournonite, Quartz and Pyrite
Pachapaqui District, Bolognesi Province, Ancash Department, Peru
$280
72mm x 54mm x 52mm
Bournonite with Sphalerite, Pyrite after Pyrrhotite and Galena
Stan Trg (Stari Trg) Mine, Trepča Complex, Trepča Valley, Kosovska Mitrovica, Kosovska Mitrovica District  Kosovo
$271 *
97mm x 46mm x 28mm
Bournonite on Pyrite with Quartz
Trepka Complex, Trepka Valley, Kosovska Mitrovica, Kosovo
$420
66mm x 38mm x 36mm
* price is an approximate conversion and may not be accurate.

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