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Perthite from
State Forest Quarry No. 1 (State Forest #1 Quarry; Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA

Classification
Species:Feldspar Group var: Perthite
Comments:see details under "microcline"
Confirmation
Validity:Believed Valid
References
References:Cameron, Eugene N., David M. Larrabee, Andrew H. McNair, James T. Page, Glenn W. Stewart, and Vincent E. Shainin. (1954): Pegmatite Investigations 1942-45 New England. USGS Professional Paper 255.
Data
Mineral Data:Click here to view Perthite data
Locality Data:Click here to view State Forest Quarry No. 1 (State Forest #1 Quarry; Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
Nearest other occurrences of Perthite
4.6km (2.9 miles) A Case Quarries, Portland, Middlesex Co., Connecticut, USA
6.6km (4.1 miles) B Riverside Quarry (Western Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
9.0km (5.6 miles) C Anderson No. 2 Mica Mine, East Hampton (Chatham), Middlesex Co., Connecticut, USA
9.0km (5.6 miles) D Bailey prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
12.0km (7.5 miles) E Blumenthal prospect, Glastonbury, Hartford Co., Connecticut, USA
55.2km (34.3 miles) F Curtis Quarry (Southford Quarry; Southford pegmatite; Southbury rose quartz quarry; Bridgeport Woodfinishing Co. Quarry; Hulls Hill), Southford, Southbury, New Haven Co., Connecticut, USA
83.3km (51.8 miles) G West Kingston, South Kingstown, Washington Co., Rhode Island, USA
88.0km (54.7 miles) H Smithfield beryl prospect, Smithfield, Providence Co., Rhode Island, USA
103.9km (64.6 miles) I Grants Mills, Cumberland, Providence Co., Rhode Island, USA
104.2km (64.8 miles) J Milford, Worcester Co., Massachusetts, USA
107.1km (66.5 miles) K Bristol Ferry, Bristol, Bristol Co., Rhode Island, USA
117.6km (73.0 miles) L Beattie & Wilcox Quarry, Fall River, Bristol Co., Massachusetts, USA
123.8km (76.9 miles) M Royalston, Worcester Co., Massachusetts, USA
124.9km (77.6 miles) N Rollstone Hill Quarry, Fitchburg, Worcester Co., Massachusetts, USA
128.6km (79.9 miles) O Rattlesnake Hill, Sharon, Norfolk Co., Massachusetts, USA
136.7km (84.9 miles) P Fort Point, Fairhaven, Bristol Co., Massachusetts, USA
162.6km (101.0 miles) Q Kallenberg Quarry (Robin Rock Quarry), Lynnfield, Essex Co., Massachusetts, USA
166.0km (103.2 miles) R Blister Mine, Alstead, Cheshire Co., New Hampshire, USA
170.1km (105.7 miles) S Davidson Farm pegmatite, Alstead, Cheshire Co., New Hampshire, USA
170.2km (105.8 miles) T Salem, Essex Co., Massachusetts, USA
173.4km (107.7 miles) U Alstead, Cheshire Co., New Hampshire, USA
174.8km (108.6 miles) V Coney Island, Salem, Essex Co., Massachusetts, USA
181.6km (112.8 miles) W Acworth, Sullivan Co., New Hampshire, USA
192.1km (119.4 miles) X Gloucester, Essex Co., Massachusetts, USA
197.5km (122.7 miles) Y George Frank Smith Quarry (G. F. Smith Quarry), Newport, Sullivan Co., New Hampshire, USA
205.7km (127.8 miles) Z Ascutney Mountain complex, Windsor Co., Vermont, USA
212.3km (131.9 miles) 0 Cuttingsville, Shrewsbury, Rutland Co., Vermont, USA
226.4km (140.7 miles) 1 Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
Mineral and/or Locality  
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