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
Skookumchuck Dam, Bucoda, Thurston County, Washington, USA


02231430017272034552628.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
03967770017272034567801.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
04266550017366998535140.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
04525320017272039058876.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
00979160017272733477154.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
06183320017365699763868.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
04266550017366998535140.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
07623240017366998543119.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
02231430017272034552628.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
00182850017272034591680.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
04266550017366998535140.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
04525320017272039058876.jpg
Apophyllite Group, etc.

Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
Locality type:Dam
Classification
Species:'Apophyllite Group' (not an IMA approved species)
Formula:AB4[Si8O20]X · 8H2O
Habit:tetragonal bipyrmids to 1.5"
Colour:colorless to white
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Stilbite Subgroup5
Quartz4
Thomsonite-Ca2
Analcime2
Okenite2
Mesolite1
Chabazite1
Data
Mineral Data:Click here to view Apophyllite Group data
Locality Data:Click here to view Skookumchuck Dam, Bucoda, Thurston County, Washington, USA
Photo GalleryView Gallery (7 photos)
Data Identifiers
Mindat Occurrence Record ID:93753
Long-form Identifier:1:3:93753:7
GUID (UUID V4):0
Nearest other occurrences of Apophyllite Group
35.7km (22.2 miles) ⓘMossyrock Dam, Morton, Morton Mining District, Lewis County, Washington, USA
46.9km (29.1 miles) ⓘRiffe Lake, Kosmos, Lewis County, Washington, USA
47.4km (29.5 miles) ⓘF Line pit, Doty Hills, Lewis County, Washington, USA
48.5km (30.2 miles) ⓘLucky Strike Pit, Mason County, Washington, USA
53.3km (33.1 miles) ⓘClinton Knob, Ryderwood, Lewis County, Washington, USA
59.8km (37.2 miles) ⓘThrash Creek, PeEll, Pacific County, Washington, USA
64.6km (40.1 miles) ⓘ200 / 237 Road Quarry, Wolf Point, Cowlitz County, Washington, USA
75.2km (46.7 miles) ⓘElk Mountain, Toutle, Cowlitz County, Washington, USA
79.2km (49.2 miles) ⓘRainier Quarry, Rainier, Columbia County, Oregon, USA
82.1km (51.0 miles) ⓘDixon Road Quarry, Raymond, Pacific County, Washington, USA
References
Cannon, Bart (1975) Minerals of Washington. Cordilleran. 184 pp.p.48
Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc. 567pp.
 
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