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Bournonite (“cogwheel”-esque twins)
Bournonite (“cogwheel”-esque twins) Bournonite (“cogwheel”-esque twins) Bournonite (“cogwheel”-esque twins)
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Bournonite (“cogwheel”-esque twins) (Ref: 821514101)

Viboras Mine, Machacamarca, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosi Department, Bolivia
29mm x 22mm x 19mm
minID: P1K-88N
A hard to find cogwheel-esque group of sharp, fairly thick, blocky modified twinned crystals of Bournonite with excellent luster and aesthetics. The piece would be classified as a large thumbnail / small toenail, and displays well from several angles (my favorite being the last picture). The stacke
From: Mineral Classics
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See Also

Bournonite
Viboras Mine, Machacamarca mining dstrict, Cornelio Saavedra Province, Potosi, Bolivia
$355 *
48mm x 38mm x 20mm
From: Taranis Minerals
Bournonite
Machacamarca District, Potosi Department, Bolivia
$450
50mm x 40mm x 25mm
From: Marin Minerals
Bournonite on Sphalerite
Machacamarca Mine, Potosí Department, Bolivia
$200
82mm x 60mm x 30mm
From: Marin Minerals
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 Siderite
Julcani Mine | Julcani District | Angaraes Province | Huancavelica | Peru
$337 *
90mm x 42mm x 14mm
From: Wendel Minerals
Bournonite on Siderite
Julcani Mine | Julcani District | Angaraes Province | Huancavelica | Peru
$421 *
62mm x 51mm x 34mm
From: Wendel Minerals
Bournonite
Machacamara District, Potosi Dept., Bolivia
$225
33mm x 32mm x 22mm
From: Marin Minerals
Bournonite
Potosi Department, Bolivia
$475
38mm x 30mm x 25mm
From: Marin Minerals
Bournonite
Yaogangxian Mine, Yizhang County, Chenzhou Prefecture, Hunan Province, China
$375
28mm x 12mm x 11mm
From: Bob Griffis Minerals
Bournonite
Mitsumine, Chichibu mining district, Nakatsugawa, Ohtaki-mura, Chichibu City, Saitama Prefecture, Japan
$140
10mm x 6mm x 5mm
From: Marin Minerals
Bournonite
Georg Mine, Willroth, Rhineland-Palatinate, Germany
$280
20mm x 15mm x 12mm
From: Marin Minerals
Baryte, Bournonite, Siderite.
Mésage Mine, Vizille, France.
$152 *
55mm x 25mm x 20mm
From: A Bijoux
Bournonite + Sphalerite.
Les Malines, Saint-Laurent-le-Minier, Occitanie, France
$381 *
113mm x 76mm x 70mm
From: A Bijoux
Siderite, Quartz, Bournonite, Pyrite.
Mésage Mine, Vizille, France.
$133 *
50mm x 40mm x 27mm
From: A Bijoux
* price is an approximate conversion and may not be accurate.

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