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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Apophyllite Group from
Mossyrock Dam, Morton, Morton Mining District, Lewis County, Washington, USA


Locality type:Dam
Classification
Species:'Apophyllite Group' (not an IMA approved species)
Formula:AB4[Si8O20]X · 8H2O
Habit:tetragonal pyrmids to 1.5"
Colour:white, colorless
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Apophyllite Group data
Locality Data:Click here to view Mossyrock Dam, Morton, Morton Mining District, Lewis County, Washington, USA
Data Identifiers
Mindat Occurrence Record ID:93752
Long-form Identifier:1:3:93752:8
GUID (UUID V4):0
Nearest other occurrences of Apophyllite Group
11.7km (7.3 miles) ⓘRiffe Lake, Kosmos, Lewis County, Washington, USA
35.7km (22.2 miles) ⓘSkookumchuck Dam, Bucoda, Thurston County, Washington, USA
37.9km (23.5 miles) ⓘ200 / 237 Road Quarry, Wolf Point, Cowlitz County, Washington, USA
44.8km (27.9 miles) ⓘElk Mountain, Toutle, Cowlitz County, Washington, USA
58.3km (36.2 miles) ⓘClinton Knob, Ryderwood, Lewis County, Washington, USA
64.5km (40.1 miles) ⓘRainier Quarry, Rainier, Columbia County, Oregon, USA
66.9km (41.6 miles) ⓘRoadcuts, Kalama area, Cowlitz County, Washington, USA
71.3km (44.3 miles) ⓘThrash Creek, PeEll, Pacific County, Washington, USA
74.6km (46.4 miles) ⓘF Line pit, Doty Hills, Lewis County, Washington, USA
84.3km (52.4 miles) ⓘLucky Strike Pit, Mason County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.48
 
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