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Chlorophane from
Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA

Locality type:Quarry
Species:Fluorite var: Chlorophane
Comments:Crystals mostly micros in pockets in the aplitic zone, larger crystals to a few cm rare, but they typically crumble into fragments when found. Typically as irregular masses to 10 cm. SW fluorescence is eventually lost if left exposed to any light, so immediately place and keep any finds in an opaque container to preserve this property.
Habit:anhedral to modified octahedral
Colour:micro crystals colorless to pale pink with purple zones at the tips, larger crystals and masses are red to reddish black
Luminescent properties:blue-green in SW, purple in LW, green phosphorescence
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Common
Confirmation Methods:Visual (Fluorescence)
References:Hewitt, Herb. (circa 1960s): Hewitt Gem Mine advertisement flyer.; Harold Moritz field observations 2015.
Associated Minerals Based on Photo Data:
Microlite Group2 photos of Chlorophane associated with Microlite Group at this locality.
Smoky Quartz1 photo of Chlorophane associated with Smoky Quartz at this locality.
Mineral Data:Click here to view Chlorophane data
Locality Data:Click here to view Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
Nearest other occurrences of Chlorophane
4.4km (2.7 miles) A Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
9.4km (5.9 miles) B Slocum prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
13.9km (8.6 miles) C Linkpot cut, Airline Railroad, East Hampton (Chatham), Middlesex Co., Connecticut, USA
14.0km (8.7 miles) D Riverside Quarry (Western Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
22.1km (13.8 miles) E Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
62.5km (38.8 miles) F Old Mine Park (Lane’s Mine of Trumbull; Lane's New Stratford mine; Hubbard Mine; Long Hill Mine; Old Tungsten Mine), Long Hill, Trumbull, Fairfield Co., Connecticut, USA
62.7km (39.0 miles) G Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield Co., Connecticut, USA
80.2km (49.8 miles) H Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
108.2km (67.2 miles) I Cumberland, Providence Co., Rhode Island, USA
Mineral and/or Locality  
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