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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Pyromorphite from
Old lead mine, Brookfield, Fairfield County, Connecticut, USA


Locality type:Mine
Classification
Species:Pyromorphite
Formula:Pb5(PO4)3Cl
Comments:Shepard's (1837) description appears identical to Januzzi's (1994) photo of greenockite, so it could actually be the latter mineral.
Habit:Pulverulent coatings
Colour:yellow-green
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Common
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Pyromorphite data
Locality Data:Click here to view Old lead mine, Brookfield, Fairfield County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:820643
Long-form Identifier:1:3:820643:5
GUID (UUID V4):0
Nearest other occurrences of Pyromorphite
2.0km (1.2 miles) ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
13.4km (8.3 miles) ⓘBiermann Quarries (Bethel quarries; Codfish Hill Quarry), Bethel, Fairfield County, Connecticut, USA
22.3km (13.9 miles) ⓘFillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA
28.4km (17.6 miles) ⓘState Route 25 road cuts, Trumbull, Fairfield County, Connecticut, USA
38.0km (23.6 miles) ⓘThomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA
50.9km (31.6 miles) ⓘOssining (Sing Sing), Westchester County, New York, USA
51.9km (32.3 miles) ⓘSparta Mine, Ossining (Sing Sing), Westchester County, New York, USA
56.6km (35.2 miles) ⓘHuckleberry Hill, Avon, Hartford County, Connecticut, USA
58.0km (36.0 miles) ⓘCanton Lead Mines (Cherry Brook lead mine; Dyer Farm zinc mine), Rattlesnake Hill, Canton, Hartford County, Connecticut, USA
66.9km (41.6 miles) ⓘMiddletown lead mines (Middletown Mine), Middletown, Middlesex County, Connecticut, USA
References
Shepard, Charles Upham (1837) A Report on the Geological Survey of Connecticut. Geological Survey of Connecticut.
 
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