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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Staurolite from
Town Farm Road, Litchfield, Litchfield County, Connecticut, USA


05525650017367244773190.jpg
Staurolite

Town Farm Road, Litchfield, Litchfield County, Connecticut, USA
05525650017367244773190.jpg
Staurolite

Town Farm Road, Litchfield, Litchfield County, Connecticut, USA
06685870017271983999073.jpg
Staurolite

Town Farm Road, Litchfield, Litchfield County, Connecticut, USA
Locality type:Road
Classification
Species:Staurolite
Formula:Fe22+Al9Si4O23(OH)
Comments: 7.5 to 10 cm as anhedral to subhedral crystals
Habit:prismatic
Colour:dark brown
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Staurolite data
Locality Data:Click here to view Town Farm Road, Litchfield, Litchfield County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:849999
Long-form Identifier:1:3:849999:8
GUID (UUID V4):0
Nearest other occurrences of Staurolite
2.3km (1.5 miles) ⓘHighland Avenue, Torrington, Litchfield County, Connecticut, USA
3.7km (2.3 miles) ⓘState Route 118 Bantam River bridge, Litchfield, Litchfield County, Connecticut, USA
12.5km (7.8 miles) ⓘThomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA
16.0km (10.0 miles) ⓘReynolds Bridge, Thomaston, Litchfield County, Connecticut, USA
21.7km (13.5 miles) ⓘState Route 8 interchange 34 (formerly 37), Watertown, Litchfield County, Connecticut, USA
23.4km (14.5 miles) ⓘRatlum Mountain, Canton, Hartford County, Connecticut, USA
24.4km (15.2 miles) ⓘQuartz mine (Judd's Bridge kyanite locality), Washington, Litchfield County, Connecticut, USA
32.3km (20.1 miles) ⓘGreen's Farm locality (Roxbury garnet mine; Roxbury Falls garnet mine; Garnet Hill), Roxbury, Litchfield County, Connecticut, USA
33.2km (20.6 miles) ⓘBerry Road kyanite locality, Roxbury, Litchfield County, Connecticut, USA
41.1km (25.5 miles) ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
References
Gold, T. S. (1838), New locality of crichtonite. American Journal of Science: 35: 179.
Gates, Robert M. and Nikolas L. Christensen. (1965). The Bedrock Geology of the West Torrington Quadrangle. State Geological and Natural History Survey of Connecticut Quadrangle Report No. 17.
Brunet, William M. (1977) Ilmenite Occurrences in Litchfield, Connecticut. Rocks & Minerals, 52 (8) 415-420 doi:10.1080/00357529.1977.11762013
Hiller, John. (1982), Unpublished sketch map.
 
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