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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Nontronite from
Pulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA


Locality type:Quarry
Classification
Species:Nontronite
Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Nontronite data
Locality Data:Click here to view Pulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:33477
Long-form Identifier:1:3:33477:6
GUID (UUID V4):0
Nearest other occurrences of Nontronite
31.4km (19.5 miles) ⓘHavey #1 & #2 Quarries, Topsham, Sagadahoc County, Maine, USA
31.9km (19.8 miles) ⓘYedlin Locality, Standpipe Hill Quarries, Topsham, Sagadahoc County, Maine, USA
32.0km (19.9 miles) ⓘSwamp #1 Quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
32.0km (19.9 miles) ⓘSwamp #2 quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
32.3km (20.1 miles) ⓘConsolidated #2 Quarry (Purington Quarry), Highland Green, Topsham, Sagadahoc County, Maine, USA
40.6km (25.3 miles) ⓘEmmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
45.4km (28.2 miles) ⓘBumpus Quarry, Albany, Oxford County, Maine, USA
55.4km (34.4 miles) ⓘConsolidated Feldspar Quarries, Georgetown, Sagadahoc County, Maine, USA
61.5km (38.2 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
63.8km (39.6 miles) ⓘRedstone "Red Granite" quarry, Redstone, Conway, Carroll County, New Hampshire, USA
References
 
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