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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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Cleavelandite from
Tamminen Quarry, Greenwood, Oxford County, Maine, USA


05952030017272013313546.jpg
Cleavelandite

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
01922780017272013083909.jpg
Cleavelandite

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
06508000017272013107926.jpg
Cleavelandite, etc.

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
08785590017272013132670.jpg
Cleavelandite, etc.

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
05952030017272013313546.jpg
Cleavelandite

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
09056020017368585571825.jpg
Cleavelandite

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
04082970017368585585928.jpg
Cleavelandite, etc.

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
02259590017368585592596.jpg
Cleavelandite, etc.

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
05952030017272013313546.jpg
Cleavelandite

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
01922780017272013083909.jpg
Cleavelandite

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
06508000017272013107926.jpg
Cleavelandite, etc.

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
08785590017272013132670.jpg
Cleavelandite, etc.

Tamminen Quarry, Greenwood, Oxford County, Maine, USA
Locality type:Quarry
Classification
Species:Albite var: Cleavelandite
Formula:Na(AlSi3O8)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Cookeite2
Microcline1
Montmorillonite1
Data
Mineral Data:Click here to view Cleavelandite data
Locality Data:Click here to view Tamminen Quarry, Greenwood, Oxford County, Maine, USA
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:28419
Long-form Identifier:1:3:28419:8
GUID (UUID V4):0
Nearest other occurrences of Cleavelandite
0.1km (0.1 miles) ⓘWaisanen Quarry (Tamminen-Waisanen Quarry), Greenwood, Oxford County, Maine, USA
0.8km (0.5 miles) ⓘMorgan Quarry (Morgan Pit; Upper Noyes Mountain Quarry; Upper Harvard Quarry), Greenwood, Oxford County, Maine, USA
0.8km (0.5 miles) ⓘNoyes Mountain Quarry (Harvard Quarry), Greenwood, Oxford County, Maine, USA
1.1km (0.7 miles) ⓘOutback prospect (Gross prospect), Greenwood, Oxford County, Maine, USA
1.2km (0.8 miles) ⓘHayes Ledge Quarries (East and West), Greenwood, Oxford County, Maine, USA
2.0km (1.2 miles) ⓘB.B. No. 7 Quarry, Norway, Oxford County, Maine, USA
3.7km (2.3 miles) ⓘOhtonen Quarry, Greenwood, Oxford County, Maine, USA
6.2km (3.9 miles) ⓘEmmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
6.5km (4.0 miles) ⓘSki Pike Quarry, West Paris, Oxford County, Maine, USA
7.0km (4.4 miles) ⓘStearns Quarry, Albany, Oxford County, Maine, USA
References
Mineral News (1993) 9:2 p. 8
Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey
 
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