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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Fairfieldite from
Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Fairfieldite
Formula:Ca2Mn2+(PO4)2 · 2H2O
Comments:"The white mineral partly replacing graftonite from the Rock Landing quarry is very likely fairfieldite." Schooner (circa 1980s) reported in pieces from the Charles Thomas collection. He who also reported scorzalite, augelite, graftonite, siderite, and triphylite in these pieces. Thus possible they really came from the Palermo mine.
Colour:white
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very Rare
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Fairfieldite data
Locality Data:Click here to view Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:830454
Long-form Identifier:1:3:830454:4
GUID (UUID V4):0
Nearest other occurrences of Fairfieldite
11.0km (6.8 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
81.0km (50.3 miles) ⓘFillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
References
Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
 
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