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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Pyrrhotite from
Heddleston (Anaconda Mine - 0300490146; Mike Horse Mine - 0300490362; Carbonate Mine - 0300490040; Heddleston Deposit; Paymaster Mine - 0300490242; Midnight Mine - 0300490284; Heddleston Group), Seven-Up Pete Mining District, Lewis and Clark County, Montana, USA


Classification
Species:Pyrrhotite
Formula:Fe1-xS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrrhotite data
Locality Data:Click here to view Heddleston (Anaconda Mine - 0300490146; Mike Horse Mine - 0300490362; Carbonate Mine - 0300490040; Heddleston Deposit; Paymaster Mine - 0300490242; Midnight Mine - 0300490284; Heddleston Group), Seven-Up Pete Mining District, Lewis and Clark County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:635130
Long-form Identifier:1:3:635130:4
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
12.8km (8.0 miles) ⓘMcDonald Meadows Occurrence, Seven-Up Pete Mining District, Lewis and Clark County, Montana, USA
56.1km (34.8 miles) ⓘSpring Hill Mine, Helena Mining District (Spring Hill Mining District), Lewis and Clark County, Montana, USA
58.7km (36.5 miles) ⓘSadie Mine, Ontario Mining District (Elliston Mining District), Powell County, Montana, USA
61.4km (38.1 miles) ⓘWolftone Mine, Vaughn Mining District (Rimini Mining District), Lewis and Clark County, Montana, USA
87.9km (54.6 miles) ⓘGolden Curry Mine (Sourdough mine; Jacqueline; Jacquemin), Elkhorn Mining District, Jefferson County, Montana, USA
89.1km (55.4 miles) ⓘElkhorn Mine, Elkhorn Mining District, Jefferson County, Montana, USA
References
Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155
 
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