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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Gummite from
Big Mine, Alstead, Cheshire County, New Hampshire, USA


Locality type:Mine
Classification
Species:'Gummite' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gummite data
Locality Data:Click here to view Big Mine, Alstead, Cheshire County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:50880
Long-form Identifier:1:3:50880:3
GUID (UUID V4):0
Nearest other occurrences of Gummite
7.6km (4.7 miles) ⓘAllen Quarry, Alstead, Cheshire County, New Hampshire, USA
10.8km (6.7 miles) ⓘBeryl Mountain Quarry, South Acworth, Acworth, Sullivan County, New Hampshire, USA
60.7km (37.7 miles) ⓘRuggles Mine, Grafton, Grafton County, New Hampshire, USA
67.9km (42.2 miles) ⓘRollstone Hill Quarries, Fitchburg, Worcester County, Massachusetts, USA
68.6km (42.6 miles) ⓘPattuck Quarry, Alexandria, Grafton County, New Hampshire, USA
68.9km (42.8 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
72.6km (45.1 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
79.4km (49.4 miles) ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA
80.3km (49.9 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
82.1km (51.0 miles) ⓘPelham asbestos mine, Pelham, Hampshire County, Massachusetts, USA
References
Rocks & Min.: 15: 124.
 
and/or  
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