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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Epidote from
Mount Roosevelt, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA


Locality type:Mountain
Classification
Species:Epidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Habit:terminated crystal sprays to 2.5"
Colour:Dark green
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Epidote data
Locality Data:Click here to view Mount Roosevelt, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:192198
Long-form Identifier:1:3:192198:4
GUID (UUID V4):0
Nearest other occurrences of Epidote
2.7km (1.7 miles) ⓘChair Peak Lake, Snoqualmie Mining District, King County, Washington, USA
3.6km (2.3 miles) ⓘChair Peak Skarn, Snoqualmie Mining District, King County, Washington, USA
7.0km (4.3 miles) ⓘDenny Gulch, Denny Mountain, Snoqualmie Mining District, King County, Washington, USA
7.2km (4.5 miles) ⓘGranite Mountain, King County, Washington, USA
7.3km (4.6 miles) ⓘGuye Mine, Snoqualmie Mining District, King County, Washington, USA
9.8km (6.1 miles) ⓘPuffball claim, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
10.6km (6.6 miles) ⓘSpruce Ridge, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
10.9km (6.7 miles) ⓘCondor-Hemlock Mine, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
11.0km (6.8 miles) ⓘHumpback Mountain, Hansen Creek area, Snoqualmie Mining District, King County, Washington, USA
12.4km (7.7 miles) ⓘHardscrabble Creek, Middle Fork of the Snoqualmie River, Snoqualmie Mining District, King County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.86
Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc. 567pp.
 
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