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Cummingtonite from
Garnet prospect, Middle Haddam, East Hampton (Chatham), Middlesex County, Connecticut, USA


Locality type:Prospect
Classification
Species:Cummingtonite
Formula:◻{Mg2}{Mg5}(Si8O22)(OH)2
Comments:Could be the brown mineral Schooner (1958) says looks like anthophyllite.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cummingtonite data
Locality Data:Click here to view Garnet prospect, Middle Haddam, East Hampton (Chatham), Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:648619
Long-form Identifier:1:3:648619:8
GUID (UUID V4):8026d03e-6eb7-4ea9-8aa6-2f5ea034337c
Nearest other occurrences of Cummingtonite
4.8km (3.0 miles) Unnamed amphibole-tourmaline-magnetite locality, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
8.8km (5.5 miles) Haddam, Middlesex County, Connecticut, USA
42.2km (26.3 miles) Becker Quarry (Becker's Quarry), West Willington, Willington, Tolland County, Connecticut, USA
88.2km (54.8 miles) Chester Emery Mines, Chester, Hampden County, Massachusetts, USA
References
Reference Search (possible matching items)
Book (volume)
greater variety of minerals are found in Oxford County, alone, than anywhere else on Earth of comparable...than Maine's, as well. An area smaller than Oxford County in Murmansk Ob last, Kola Peninsula, Russia, has...gem-producing areas in the United States, admittedly. Connecticut has produced a few tourmalines, aquamarines,...clear to slightly blue topazes. However, San Diego County, California, is arguably the most important gem-pegmatite...arranged alphabetically: P. B. Goodsell, Hartford, Connecticut, 44 p. Hentschel, G., 1983, Die mineralien der
Book (volume)
600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason
Book (volume)
600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason
Book (volume)
lie some of the oldest crystalline rocks in the East, both igneous and metamorphic, strongly mineralized...Dahlonega Co. and Rabum Co., and  the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE:
Journal (issue)
Three mine pegmatites, Ramona district, San Diego County, California ............................101 by...Three property in the Ramona district, San Diego County, California. This mine, strictly speaking, is developed...gem-quality and specimen-quality orange spessartine garnet, and blue topaz equalling or surpassing material...Hercules mine, produced some excellent spessartine garnet (Sterrett, 1908) but has not been worked for many...for the other pegmatite gem mines in San Diego County, the collapse o f the Chinese tourmaline market
Report (edition)
Department of Mines and Petroleum 100 Plain Street EAST PERTH, WESTERN AUSTRALIA 6004 Telephone: +61 8 9222............................................... 21 East Kimberley Diamond Province.................................................................... 24 East Kimberley Diamond Province.................................................................... 71 East Bowes area ............................................................ 194 Chapter 24 Garnet group 195 Garnet group minerals ......................
Report (edition)
Department of Mines and Petroleum 100 Plain Street East Perth WA 6004 Phone: (08) 9222 3459 Fax: (08) 9222...Department of Mines and Petroleum 100 Plain Street EAST PERTH, WESTERN AUSTRALIA 6004 Telephone: +61 8 9222............................................... 15 East Kimberley diamond province ................................................................... 20 East Kimberley diamond province .................................................................. 185 East Kimberley region...............................
 
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