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


Locality type:Quarry
Classification
Species:Vivianite
Formula:Fe2+Fe22+(PO4)2 · 8H2O
Comments:"replaces triphylite on specimens of graftonite" from the Charles Thomas collection as reported by Schooner (circa 1980s), along with augelite, fairfieldite, graftonite, siderite, and scorzalite, suggesting the pieces came from the Palermo mine.
Abundance at site:Very Rare
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Vivianite 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:830457
Long-form Identifier:1:3:830457:5
GUID (UUID V4):0
Nearest other occurrences of Vivianite
7.9km (4.9 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
11.0km (6.8 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
56.5km (35.1 miles) ⓘState Routes 8 and 118 interchange, Harwinton, Litchfield County, Connecticut, USA
73.0km (45.3 miles) ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield 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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