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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Smectite Group from
SE Lava Drive, Milwaukie, Clackamas County, Oregon, USA


Locality type:Property
Classification
Species:'Smectite Group' (not an IMA approved species)
Formula:A0.3D2-3[T4O10]Z2 · nH2O
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Offretite31
Lévyne-Ca23
Erionite-Ca22
Stilbite Subgroup13
Chabazite2
Data
Mineral Data:Click here to view Smectite Group data
Locality Data:Click here to view SE Lava Drive, Milwaukie, Clackamas County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:975102
Long-form Identifier:1:3:975102:6
GUID (UUID V4):0
Nearest other occurrences of Smectite Group
1.3km (0.8 miles) ⓘElk Rock Island, Milwaukie, Clackamas County, Oregon, USA
16.4km (10.2 miles) ⓘNew Era, Clackamas County, Oregon, USA
52.3km (32.5 miles) ⓘBig Tree Creek, Yacolt, Clark County, Washington, USA
65.2km (40.5 miles) ⓘOak Grove Fork, Clackamas County, Oregon, USA
66.3km (41.2 miles) ⓘNeer Road, Goble, Columbia County, Oregon, USA
69.3km (43.0 miles) ⓘNestucca River Quarry, Beaver, Tillamook County, Oregon, USA
73.1km (45.4 miles) ⓘMc Gregor Quarry, Highway 26, Clatsop County, Oregon, USA
80.4km (50.0 miles) ⓘCarpathite occurrence, Cook, Skamania County, Washington, USA
83.6km (51.9 miles) ⓘBaird Creek Quarry, Wolf Point, Cowlitz County, Washington, USA
91.5km (56.9 miles) ⓘCTGH-1 well, Breitenbush-Austin Hot Springs area, Santiam Mining District (Elkhorn Mining District), Marion County, Oregon, USA
References
(n.d.) Rudy Tschernich Zeolite Collection, Rice Museum.
 
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