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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Actinolite from
Washington Metals Mine, Stevens County, Washington, USA


Locality type:Mine
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Washington Metals Mine, Stevens County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:96452
Long-form Identifier:1:3:96452:2
GUID (UUID V4):0
Nearest other occurrences of Actinolite
15.3km (9.5 miles) ⓘNevada Mine, Chewelah Mining District, Stevens County, Washington, USA
23.1km (14.4 miles) ⓘTogo Mine, Allen Clay Property, Springdale Mining District, Stevens County, Washington, USA
42.1km (26.2 miles) ⓘLincoln Prospect, Egypt Mining District, Lincoln County, Washington, USA
74.0km (46.0 miles) ⓘTwin Pine Mine, Nespelem Mining District, Okanogan County, Washington, USA
80.7km (50.1 miles) ⓘKelly Camp Mine, Republic Mining District, Ferry County, Washington, USA
93.5km (58.1 miles) ⓘLe Roi Mine, Rossland, Trail Creek Mining Division, British Columbia, Canada
93.5km (58.1 miles) ⓘCrown Point mine, Rossland, Trail Creek Mining Division, British Columbia, Canada
95.6km (59.4 miles) ⓘSappho deposit, Boundary Camp, Greenwood Mining Division, British Columbia, Canada
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.86
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
 
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