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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Chrysoberyl from
U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA


05356010017272735087534.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
00685640017272013897521.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
03775380017373464374329.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
05356010017272735087534.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
00685640017272013897521.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
03775380017373464374329.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
05356010017272735087534.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
00685640017272013897521.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
03775380017373464374329.jpg
Chrysoberyl, etc.

U. S. Route 7 Expressway, Brookfield, Fairfield County, Connecticut, USA
Locality type:Road Cutting
Classification
Species:Chrysoberyl
Formula:BeAl2O4
Formation:Primary
Comments:"First collected, by the author, at a granite pegmatite in the Iron Works District of Brookfield. The first crystal was about an eighth of an inch in length and bright lemon-yellow in color; this specimen was consumed at Wesleyan University for confirmation purposes. The chrysoberyl pictured is embedded in feldspar and pale yellow green in color." Januzzi (1994). Two specimens from Januzzi's collection were obtained after he passed away and confirm the occurrence. The better crystal is only 2mm.
Habit:tabular twinned
Colour:pale yellow green to bright lemon-yellow
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Extremely Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Albite3
Quartz2
Schorl2
Beryl1
Microcline1
Data
Mineral Data:Click here to view Chrysoberyl data
Locality Data:Click here to view U. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:810505
Long-form Identifier:1:3:810505:9
GUID (UUID V4):0
Nearest other occurrences of Chrysoberyl
72.5km (45.1 miles) ⓘThulite locality, Haddam, Middlesex County, Connecticut, USA
72.7km (45.2 miles) ⓘHill above the parsonage (unnamed feldspar quarry), Haddam, Middlesex County, Connecticut, USA
72.8km (45.2 miles) ⓘChrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
73.8km (45.9 miles) ⓘGillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
79.6km (49.5 miles) ⓘFort George (192nd Street & Audubon Avenue), Washington Heights, Manhattan (New York County), New York City, New York, USA
87.8km (54.6 miles) ⓘ93rd Street & Riverside Drive, Manhattan (New York County), New York City, New York, USA
88.2km (54.8 miles) ⓘ88th Street, Manhattan (New York County), New York City, New York, USA
91.5km (56.9 miles) ⓘ164th Street & Broadway, Manhattan (New York County), New York City, New York, USA
References
Januzzi, Ronald. E. (1994) Mineral Data Book - Western Connecticut and Environs. Mineralogical Press, Danbury, Connecticut, USA.
 
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