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
Newhalem Roadcuts, Whatcom County, Washington, USA


Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Colour:bright green
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Talc
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Newhalem Roadcuts, Whatcom County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:93218
Long-form Identifier:1:3:93218:9
GUID (UUID V4):0
Nearest other occurrences of Actinolite
11.1km (6.9 miles) ⓘSkagit Talc Mine, Cascade Mining District, Skagit County, Washington, USA
38.4km (23.8 miles) ⓘLizard Mountain, Skagit County, Washington, USA
47.7km (29.7 miles) ⓘFinney Creek, Skagit County, Washington, USA
57.3km (35.6 miles) ⓘGiant Copper deposit, New Westminster Mining Division, British Columbia, Canada
60.7km (37.7 miles) ⓘLucky Four Claims, Foley Peak, Laidlaw, New Westminster Mining Division, British Columbia, Canada
62.1km (38.6 miles) ⓘHolden Mine, Railroad Creek Mining District, Chelan County, Washington, USA
62.8km (39.0 miles) ⓘMazama Porphyry, Mazama Mining District, Okanogan County, Washington, USA
66.5km (41.3 miles) ⓘMiddle Fork Nooksack River, Whatcom County, Washington, USA
67.9km (42.2 miles) ⓘDeer Creek, Snohomish County, Washington, USA
77.7km (48.3 miles) ⓘMackinaw Mine, Monte Cristo Mining District, Snohomish County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.
 
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