Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Bournonite from
Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia


03033120017367266132953.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
06807370017271994372980.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
01595690017271994404163.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
07325620017271994401496.jpg
Bournonite, etc.

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
09392870017272035813484.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
06807370017271994372980.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
01595690017271994404163.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
07325620017271994401496.jpg
Bournonite, etc.

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
09392870017272035813484.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
01389730017271994415542.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
06539960017271994437402.jpg
Bournonite

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
04677870017367266217756.jpg
Bournonite, etc.

Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
Locality type:Mine
Classification
Species:Bournonite
Formula:PbCuSbS3
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Augelite
Associated Minerals Based on Photo Data:
Quartz51
Pyrite45
Sphalerite22
Siderite22
Tetrahedrite Subgroup4
Data
Mineral Data:Click here to view Bournonite data
Locality Data:Click here to view Machacamarca Mine, Machacamarca subdistrict, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
Photo GalleryView Gallery (124 photos)
Data Identifiers
Mindat Occurrence Record ID:42818
Long-form Identifier:1:3:42818:1
GUID (UUID V4):0
Nearest other occurrences of Bournonite
0.1km (0.1 miles) ⓘSilver Sand Project, Tacobamba Municipality, Cornelio Saavedra Province, Potosí, Bolivia
36.2km (22.5 miles) ⓘCerro de Potosí (Cerro Rico), Potosí (Potosí Municipality), Tomás Frías Province, Potosí, Bolivia
90.1km (56.0 miles) ⓘColquechaca, Colquechaca Municipality, Chayanta Province, Potosí, Bolivia
References
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
Smith, Bill, Smith, Carol, Petrov, Alfredo (2001) A Guide to Mineral Localities in Bolivia. The Mineralogical Record, 32 (6) 457-482
 
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