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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Cleavelandite from
Rice Quarry, Groton, Grafton County, New Hampshire, USA


Locality type:Mine
Classification
Species:Albite var: Cleavelandite
Formula:Na(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cleavelandite data
Locality Data:Click here to view Rice Quarry, Groton, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:317018
Long-form Identifier:1:3:317018:2
GUID (UUID V4):0
Nearest other occurrences of Cleavelandite
0.9km (0.6 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
6.9km (4.3 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
10.7km (6.6 miles) ⓘStandard Mine, Orange, Grafton County, New Hampshire, USA
18.8km (11.7 miles) ⓘRuggles Mine, Grafton, Grafton County, New Hampshire, USA
51.6km (32.1 miles) ⓘGeorge Frank Smith Quarry, Newport, Sullivan County, New Hampshire, USA
51.7km (32.1 miles) ⓘChandlers Mill Quarry, Newport, Sullivan County, New Hampshire, USA
65.5km (40.7 miles) ⓘMiddle Moat Mountain locality, Hale's Location, Carroll County, New Hampshire, USA
65.6km (40.7 miles) ⓘGovernment pit, Albany, Carroll County, New Hampshire, USA
70.5km (43.8 miles) ⓘBeryl Mountain Quarry, South Acworth, Acworth, Sullivan County, New Hampshire, USA
71.9km (44.7 miles) ⓘHam and Weeks Mine, Wakefield, Carroll County, New Hampshire, USA
References
Rocks & Min 80:252
 
and/or  
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