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
Azurite Mine, Slate Creek Mining District, Whatcom County, Washington, USA


07942210017395976275746.jpg
Pyrrhotite, etc.

Azurite Mine, Slate Creek Mining District, Whatcom County, Washington, USA
07942210017395976275746.jpg
Pyrrhotite, etc.

Azurite Mine, Slate Creek Mining District, Whatcom County, Washington, USA
04561230017395976285275.jpg
Pyrrhotite, etc.

Azurite Mine, Slate Creek Mining District, Whatcom County, Washington, USA
Locality type:Mine
Classification
Species:Pyrrhotite
Formula:Fe1-xS
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chalcopyrite1
Data
Mineral Data:Click here to view Pyrrhotite data
Locality Data:Click here to view Azurite Mine, Slate Creek Mining District, Whatcom County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:150960
Long-form Identifier:1:3:150960:1
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
2.5km (1.5 miles) ⓘGold Hill Mine, Slate Creek Mining District, Whatcom County, Washington, USA
9.6km (6.0 miles) ⓘNew Light Mine, Slate Creek Mining District, Whatcom County, Washington, USA
11.6km (7.2 miles) ⓘPthomigan Prospect, Okanogan County, Washington, USA
12.3km (7.6 miles) ⓘGold Ridge Prospect, Hidden Lakes Mining District, Okanogan County, Washington, USA
13.3km (8.3 miles) ⓘJim Mountain Prospect, Slate Creek Mining District, Whatcom County, Washington, USA
13.7km (8.5 miles) ⓘNew Hope Prospect, Hidden Lakes Mining District, Okanogan County, Washington, USA
17.7km (11.0 miles) ⓘBeauty Creek Lode, Mazama Mining District, Okanogan County, Washington, USA
22.5km (14.0 miles) ⓘBilly Jack Prospect, Bridge Creek, Stehekin Mining District, Chelan County, Washington, USA
24.2km (15.0 miles) ⓘLogan Prospect, Stehekin Mining District, Chelan County, Washington, USA
25.8km (16.0 miles) ⓘMid Range Mine, Twisp Mining District, Okanogan County, Washington, USA
References
Derkey, Robert E., Joseph, Nancy L., Lasmanis, Raymond (1990, November) Metal Mines of Washington - Preliminary Report. Open File Report 90-18. Washington Division of Geology and Earth Resources
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
and/or  
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