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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Dolomite from
Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden


06001380017272038116079.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
02315890017363923062780.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
00989600017363923074494.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
02370400017363923083669.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
02315890017363923062780.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
00989600017363923074494.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
06001380017272038116079.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
02315890017363923062780.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
00989600017363923074494.jpg
Dolomite, etc.

Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Locality type:Mine
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite28
Magnetite13
Hausmannite13
Magnesioferrite7
Pinakiolite6
Pyroaurite6
Litharge5
Hematite5
Adelite3
Erssonite3
Serpentine Subgroup3
Magnussonite3
Manganohörnesite3
Allactite3
Arseniopleite3
Hedyphane3
Mimetite2
Berzeliite2
Todorokite2
Jacobsite1
Sahlinite1
Svabite1
Kentrolite1
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Data Identifiers
Mindat Occurrence Record ID:13244
Long-form Identifier:1:3:13244:2
GUID (UUID V4):0
Localities for Dolomite in this Region
Bergsråds sänkning, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Bjelke's shaft dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Collegiegruvan stope, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Dolomite dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
England stope, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Garden dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Irland working, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Japan working, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
The Lake dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
The Pole dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Nearest other occurrences of Dolomite
0.2km (0.1 miles) ⓘCollegiegruvan stope, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.2km (0.1 miles) ⓘBergsråds sänkning, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.3km (0.2 miles) ⓘDolomite dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.3km (0.2 miles) ⓘThe Pole dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.4km (0.2 miles) ⓘThe Lake dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.4km (0.2 miles) ⓘJapan working, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.4km (0.2 miles) ⓘGarden dump, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.5km (0.3 miles) ⓘEngland stope, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
0.5km (0.3 miles) ⓘIrland working, Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
2.8km (1.7 miles) ⓘLahäll Mines, Långban Ore District, Filipstad, Värmland County, Sweden
References
Holtstam, Dan, Langhof, Jörgen - Eds. (1999) Långban - The mines, their minerals, geology and explorers. Raster Förlag; Swedish Museum of Natural History, Stockholm. p.1-216.
Jonsson, E.; H\aalenius, U.; Majka, J.; Bosi, F. (2025) Skogbyite, Zr(Mg₂Mn³⁺₄)SiO₁₂, a new zirconium mineral in the braunite group from Långban, Bergslagen, Sweden. European Journal of Mineralogy, 37 (2). 269-277 doi:10.5194/ejm-37-269-2025
 
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