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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Samarskite-(Y) from
Hale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA


Locality type:Prospect
Classification
Species:Samarskite-(Y)
Formula:YFe3+Nb2O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Samarskite-(Y) data
Locality Data:Click here to view Hale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:96306
Long-form Identifier:1:3:96306:4
GUID (UUID V4):0
Nearest other occurrences of Samarskite-(Y)
0.8km (0.5 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
2.0km (1.2 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
3.6km (2.3 miles) ⓘWhite Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
4.5km (2.8 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
6.1km (3.8 miles) ⓘHowe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
6.2km (3.8 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
6.5km (4.0 miles) ⓘHollister prospects, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
6.8km (4.2 miles) ⓘHusband Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
10.7km (6.6 miles) ⓘKnob Hill Quarry, Glastonbury, Hartford County, Connecticut, USA
11.2km (7.0 miles) ⓘSpinelli prospect (Spinelli quarry), Glastonbury, Hartford 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
Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA.
 
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