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Heliodor from
Case Quarries, Portland, Middlesex Co., Connecticut, USA

Description
Comments:Much less common than the green and blue varieties.
Habit:elongated to short hexagonal prisms
Colour:yellow
Quality of samples:not specified / average specimens
Rarity at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visual Identification
References
References:Cameron, Eugene N., Larrabee David M., McNair, Andrew H., Page, James T., Stewart, Glenn W., and Shainin, Vincent E. (1954), Pegmatite Investigations 1942-45 New England. USGS Professional Paper 255.; Schooner, Richard. (1958), The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.
Data
Mineral Data:Click here to view Heliodor data
Locality Data:Click here to view Case Quarries, Portland, Middlesex Co., Connecticut, USA
Nearest other occurrences of Heliodor
1.5km (1.0 miles) Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
1.9km (1.2 miles) Simpson Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
3.7km (2.3 miles) Schoonmaker Mine (Cramer Mine), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
3.8km (2.4 miles) Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
11.0km (6.8 miles) Becker Quarry, East Hampton (Chatham), Middlesex Co., Connecticut, USA
13.0km (8.1 miles) Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USA
13.7km (8.5 miles) Slocum Prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
19.4km (12.1 miles) Civilian Conservation Corps prospect (CCC prospect; Cook columbite prospect), Haddam, Middlesex Co., Connecticut, USA
20.0km (12.4 miles) Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
71.1km (44.2 miles) New England Mining Company Quarry (Roebling Mine; Hewitt's Mine), Upper Merryall, New Milford, Litchfield Co., Connecticut, USA
81.9km (50.9 miles) Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Ridgefield, Fairfield Co., Connecticut, USA
100.4km (62.4 miles) Bedford, Westchester Co., New York, USA
119.5km (74.2 miles) Northfield, Franklin Co., Massachusetts, USA
121.4km (75.4 miles) Royalston, Worcester Co., Massachusetts, USA
123.6km (76.8 miles) Rollstone Hill Quarry, Fitchburg, Worcester Co., Massachusetts, USA
128.8km (80.1 miles) Pearl Hill, Fitchburg, Worcester Co., Massachusetts, USA
194.5km (120.9 miles) Chandlers Mill Quarry, Newport, Sullivan Co., New Hampshire, USA
223.8km (139.1 miles) Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
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