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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Fluorite from
Fallon Brothers Quarry, Quincy, Norfolk County, Massachusetts, USA


Locality type:Quarry
Classification
Species:Fluorite
Formula:CaF2
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Parisite-(Ce)
Data
Mineral Data:Click here to view Fluorite data
Locality Data:Click here to view Fallon Brothers Quarry, Quincy, Norfolk County, Massachusetts, USA
Data Identifiers
Mindat Occurrence Record ID:49134
Long-form Identifier:1:3:49134:5
GUID (UUID V4):0
Nearest other occurrences of Fluorite
0.3km (0.2 miles) ⓘMerry Mount Quarry, Quincy, Norfolk County, Massachusetts, USA
0.5km (0.3 miles) ⓘHardwick Quarry, Quincy, Norfolk County, Massachusetts, USA
0.9km (0.6 miles) ⓘField & Wild Quarry, Quincy, Norfolk County, Massachusetts, USA
1.2km (0.7 miles) ⓘGranite Railway Quarry (Granite Rail Quarry), Quincy, Norfolk County, Massachusetts, USA
2.5km (1.5 miles) ⓘGold Leaf Quarry, Quincy, Norfolk County, Massachusetts, USA
11.5km (7.1 miles) ⓘWest Roxbury Crushed Stone Quarry (West Roxbury Trap Rock Co. Quarry; Grove St. Quarry), West Roxbury, Boston, Suffolk County, Massachusetts, USA
19.6km (12.2 miles) ⓘRattlesnake Hill, Sharon, Norfolk County, Massachusetts, USA
26.9km (16.7 miles) ⓘBlueberry Mountain Quarry (Blueberry Hill), Woburn, Middlesex County, Massachusetts, USA
27.9km (17.4 miles) ⓘAggregate Industries Quarry (Lynn Sand and Stone Co. Quarry; Bardon Trimount Quarry; Hume Quarry), Swampscott, Essex County, Massachusetts, USA
28.2km (17.5 miles) ⓘNanny Goat Hill, Woburn, Middlesex County, Massachusetts, USA
References
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
 
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