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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Cyrtolite from
Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA


02246340017395107689684.jpg
Cyrtolite, etc.

Simpson Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
06819640017362251761990.jpg
Cyrtolite, etc.

Simpson Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
02246340017395107689684.jpg
Cyrtolite, etc.

Simpson Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
01931390017272047459433.jpg
Cyrtolite, etc.

Simpson Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
08385770017390137243022.jpg
Cyrtolite, etc.

Simpson Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
01931390017272047459433.jpg
Cyrtolite, etc.

Simpson Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
Locality type:Quarry
Classification
Species:Zircon var: Cyrtolite
Formula:Zr[(SiO4),(OH)4]
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite2
Almandine1
Columbite-(Fe)-Columbite-(Mn) Series1
Quartz1
Data
Mineral Data:Click here to view Cyrtolite data
Locality Data:Click here to view Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:623274
Long-form Identifier:1:3:623274:0
GUID (UUID V4):0
Nearest other occurrences of Cyrtolite
1.2km (0.7 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.3km (0.8 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
2.1km (1.3 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
2.4km (1.5 miles) ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA
4.6km (2.9 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
5.4km (3.3 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
8.1km (5.0 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
12.1km (7.5 miles) ⓘTollgate Quarry (Tollgate Mine; Bidwell Quarry; China-stone Quarry), Middletown, Middlesex County, Connecticut, USA
13.5km (8.4 miles) ⓘWorth and Selden Quarries (Victoria Quarry), East Hampton, Middlesex County, Connecticut, USA
15.8km (9.8 miles) ⓘSlocum prospect, East Hampton, Middlesex County, Connecticut, USA
References
In the collection of Kevin Czaja.
 
and/or  
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