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
Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Vivianite
Formula:Fe2+Fe22+(PO4)2 · 8H2O
Comments:Reported as thin blue films on weathered lithiophilite. This is unlikely given the absence of Fe in that mineral here. Lithiophilite is commonly associated with blue elbaite here, which could be mistaken for vivianite.
Habit:thin film
Colour:blue
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 Vivianite data
Locality Data:Click here to view Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:96253
Long-form Identifier:1:3:96253:3
GUID (UUID V4):0
Nearest other occurrences of Vivianite
3.8km (2.3 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
11.0km (6.8 miles) ⓘRock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
47.2km (29.3 miles) ⓘState Routes 8 and 118 interchange, Harwinton, Litchfield County, Connecticut, USA
68.7km (42.7 miles) ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
79.3km (49.3 miles) ⓘFillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
References
Schooner, Richard (1955) 90 Minerals from 1 Connecticut Hill. Rocks & Minerals, 30 (7-8). 351-358 doi:10.1080/00357529.1955.11767837
 
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