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Bournonite (“cogwheel”) on matrix
Bournonite (“cogwheel”) on matrix Bournonite (“cogwheel”) on matrix Bournonite (“cogwheel”) on matrix Bournonite (“cogwheel”) on matrix
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Bournonite (“cogwheel”) on matrix (Ref: 821505695)

Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
91mm x 47mm x 38mm
minID: Q6M-NQC
$125
To find a fine quality cogwheel such as this on matrix from Machacamarca is not common, and the photos honestly do not do this piece justice as it is much more eye-catching in person. This piece features a few attractive cogwheel-twinned crystal groups of Bournonite with superb luster sitting atop
Data last checked on 14th Sep 2021 - specimen may no longer be available

From: Mineral Classics
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See Also

Bournonite on Quartz
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$225
29mm x 16mm x 15mm
From: Mineral Classics
Bournonite on Quartz
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$300
62mm x 54mm x 32mm
From: Mineral Classics
Bournonite (“cogwheel”-esque twins)
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$325
29mm x 22mm x 19mm
From: Mineral Classics
Bournonite (“cogwheels”)
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$350
37mm x 20mm x 12mm
From: Mineral Classics
Bournonite
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$375
31mm x 30mm x 19mm
From: Mineral Classics
Bournonite
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$500
42mm x 26mm x 25mm
From: Mineral Classics
Bournonite
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$600
34mm x 25mm x 4mm
From: Mineral Classics
Bournonite (unique specimen)
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$800
103mm x 65mm x 27mm
From: Mineral Classics
Bournonite (excellent “cogwheel”) on Pyrite
Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
$950
40mm x 27mm x 17mm
From: Mineral Classics
Bournonite
Viboras Mine, Machacamarca mining dstrict, Cornelio Saavedra Province, Potosi, Bolivia
$355 *
48mm x 38mm x 20mm
From: Taranis Minerals
Bournonite (“cogwheel”)
Viboras Mine, Machacamarca, Potosi Department, Bolivia" />
$175
22mm x 17mm x 10mm
From: Mineral Classics
Bournonite
Machacamarca Mine, Potosi Dept., Bolivia
$150
25mm x 23mm x 15mm
From: Marin Minerals
Bournonite
Machacamarca Mine, Potosi Dept., Bolivia
$90
24mm x 23mm x 15mm
From: Marin Minerals
Bournonite on Sphalerite
Machacamarca Mine, Potosí Department, Bolivia
$200
82mm x 60mm x 30mm
From: Marin Minerals
Bournonite
Machacamarca District, Potosi Department, Bolivia
$400
50mm x 40mm x 25mm
From: Marin Minerals
* price is an approximate conversion and may not be accurate.

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