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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Thomsonite-Ca from
Roadcuts, Kalama area, Cowlitz County, Washington, USA


Classification
Species:Thomsonite-Ca
Formula:NaCa2[Al5Si5O20] · 6H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Thomsonite-Ca data
Locality Data:Click here to view Roadcuts, Kalama area, Cowlitz County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:92019
Long-form Identifier:1:3:92019:3
GUID (UUID V4):0
Nearest other occurrences of Thomsonite-Ca
3.0km (1.8 miles) ⓘNeer Road, Goble, Columbia County, Oregon, USA
19.8km (12.3 miles) ⓘMount Solo, Longview, Cowlitz County, Washington, USA
30.4km (18.9 miles) ⓘ200 / 237 Road Quarry, Wolf Point, Cowlitz County, Washington, USA
38.2km (23.7 miles) ⓘSignal Peak, Cowlitz County, Washington, USA
40.2km (25.0 miles) ⓘBig Tree Creek, Yacolt, Clark County, Washington, USA
46.4km (28.8 miles) ⓘLacamas Creek, Orchards, Clark County, Washington, USA
80.1km (49.8 miles) ⓘNew Era, Clackamas County, Oregon, USA
86.8km (54.0 miles) ⓘSkookumchuck Dam, Bucoda, Thurston County, Washington, USA
88.4km (54.9 miles) ⓘWeyerhaeuser Lincoln Creek Quarry, Doty Hills, Lewis County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.69
 
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