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Eosphorite from
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA

Locality type:Quarry
Formula:Mn2+Al(PO4)(OH)2 · H2O
Comments:Intimately associated with quartz, dickinsonite, triploidite and rhodochrosite. Pink, translucent, prismatic crystals to around 1 cm long show rough striae parallel to the long axis, associated with micro encrusting quartz and apatite.
Habit:mostly massive, rare prismatic crystals
Colour:pale pink, grayish-, bluish-, and yellowish-white, white
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Rare
Validity:Valid - Type Locality
References:Brush and Dana (1878); American Mineralogist (1946): 31: 329-345; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 671, 718, 855, 938.; Rocks & Minerals (1995) 70:396-409
Associated Minerals:
Associated Minerals Based on Photo Data:
Fairfieldite2 photos of Eosphorite associated with Fairfieldite at this locality.
Natrophilite1 photo of Eosphorite associated with Natrophilite at this locality.
Lithiophilite1 photo of Eosphorite associated with Lithiophilite at this locality.
Fluorapatite1 photo of Eosphorite associated with Fluorapatite at this locality.
Mineral Data:Click here to view Eosphorite data
Locality Data:Click here to view Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA
Nearest other occurrences of Eosphorite
79.3km (49.3 miles) Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
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