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Chlorophane from
Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA

Locality type:Park
Classification
Species:Fluorite var: Chlorophane
Formula:CaF2
Formation:Primary
Comments:In cleavable masses up to 15 cm or more in the topaz-rich and albite-rich veins. Daylight color may fade to colorless on exposure to light with loss of fluorescence, though colorless material may still fluoresce. Keep this material in light-proof containers or wrapped in foil.
Habit:cleavable masses
Colour:purplish-red to red-brown, salmon, colorless to grey, pale green, blue
Luminescent properties:Fluoresces blue-green under SW UV, with purer emerald green phosphorescence. Purple fluorescence under LW UV. Also thermoluminescent with emerald green color, but this will destroy any further fluorescence or thermoluminescence once cooled.
Quality for species:Good crystals or rich for species - important (!)
Significance:Classic locality for this mineral (see references.)
Abundance at site:Common
Confirmation
Validity:Believed Valid
References
References:Hitchcock, Edward and Benjamin Silliman. (1826): Topaz. American Journal of Science: series 1: 10: 352-358.; Shepard, Charles U. (1835). Treatise on Mineralogy, Second Part, vol. 2, p. 237.; Shannon, Earl V. (1921b), Some Minerals from the Old Tungsten Mine at Long Hill in Trumbull, Connecticut. Proceedings U.S. National Museum: 58(2348): 469-482.; Sullivan, Earle C. (1985): History and Minerals of Old Mine Park. Second Edition, Revised and Expanded. Trumbull Historical Society, Inc.; Januzzi, Ronald E. (1994): Mineral Data Book - Western Connecticut and Environs. Mineralogical Press, Danbury, Connecticut.
Data
Mineral Data:Click here to view Chlorophane data
Locality Data:Click here to view Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
Photo GalleryView Gallery (2 photos)
Nearest other occurrences of Chlorophane
0.4km (0.2 miles) Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
0.8km (0.5 miles) State Route 111 construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
17.9km (11.1 miles) Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA
60.0km (37.3 miles) Riverside Quarry (Western Quarry), White Rock Mining District, Middletown, Middlesex Co., Connecticut, USA
62.5km (38.8 miles) Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
63.9km (39.7 miles) Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
66.1km (41.1 miles) Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
68.6km (42.6 miles) Slocum prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
69.8km (43.4 miles) Linkpot cut, Airline Railroad, East Hampton (Chatham), Middlesex Co., Connecticut, USA
 
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