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

Locality type:Quarry
Classification
Species:Lithiophilite
Formula:LiMn2+PO4
Comments:The anhedral to subhedral masses are typically 1 to 3 inches in diameter and coated with a black alteration. Alteration sometimes has penetrated deep into the mass so that original color is only in the core. Secondary Mn phosphates are associated. Original type material analyzed in Brush and Dana (1878) had Mn/Mn + Fe ratio of about 0.9. Landes (1925) analyzed lithiophilite from this locality and found the Mn/Mn + Fe ratio was 0.72
Habit:irregular blocky to rounded masses
Colour:bright salmon, honey-yellow, yellowish-brown to umber-brown
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Valid - Type Locality
References
References:Brush and Dana (1878); Shainin (1946) American Mineralogist 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: 667, 671, 855, 938.; USGS Prof Paper 255; Rocks & Minerals (1995) 70:396-409
Associated Minerals:
Associates:Dickinsonite-(KMnNa)
Eosphorite
Natrophilite
Reddingite
Triploidite
Associated Minerals Based on Photo Data:
Natrophilite4 photos of Lithiophilite associated with Natrophilite at this locality.
Dickinsonite-(KMnNa)4 photos of Lithiophilite associated with Dickinsonite-(KMnNa) at this locality.
Fairfieldite3 photos of Lithiophilite associated with Fairfieldite at this locality.
Spodumene3 photos of Lithiophilite associated with Spodumene at this locality.
Spessartine2 photos of Lithiophilite associated with Spessartine at this locality.
Vivianite2 photos of Lithiophilite associated with Vivianite at this locality.
Mitridatite2 photos of Lithiophilite associated with Mitridatite at this locality.
Eosphorite1 photo of Lithiophilite associated with Eosphorite at this locality.
Cleavelandite1 photo of Lithiophilite associated with Cleavelandite at this locality.
Rhodochrosite1 photo of Lithiophilite associated with Rhodochrosite at this locality.
Data
Mineral Data:Click here to view Lithiophilite data
Locality Data:Click here to view Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA
Photo GalleryView Gallery (18 photos)
Nearest other occurrences of Lithiophilite
20.7km (12.9 miles) U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
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
79.3km (49.3 miles) Schoonmaker Mine (Cramer Mine), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
 
Mineral and/or Locality  
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