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

Mineral Species
Species:Microcline
Formula:K(AlSi3O8)
Description
Comments:Stugard (1958) sampled and analyzed many pegmatites in the district (though not this one) and reports that the pethite in the district is microcline hosting albite. Large equant crystals 50-60 cm exposed along the boundaries of quartz core "pods". Crystals to several cm rarely found in pockets and these are typically etched.
Habit:elongated prisms rare from pockets, otherwise large equant crystals in quartz core pods and cleavable masses
Colour:white to cream
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very common
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.; Stugard, Frederick, Jr. (1958): Pegmatites of the Middletown Area, Connecticut. USGS Bulletin 1042-Q.
Data
Mineral Data:Click here to view Microcline 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 Microcline
0.2km (0.1 miles) A Nathan Hall Quarry (Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
0.5km (0.3 miles) B Clark Hill prospect, East Hampton (Chatham), Middlesex Co., Connecticut, USA
2.1km (1.3 miles) C Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
2.5km (1.6 miles) D State Forest Quarry #2 (State Forest No. 2 Mica Mine), Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
2.8km (1.7 miles) E Synnott Quarry, Portland, Middlesex Co., Connecticut, USA
3.0km (1.9 miles) F Pelton's Quarry, Portland, Middlesex Co., Connecticut, USA
3.1km (1.9 miles) G Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
4.1km (2.5 miles) H Hale-Walker prospects, Collins Hill, Portland, Middlesex Co., Connecticut, USA
4.2km (2.6 miles) I Vespa stone quarry, East Hampton (Chatham), Middlesex Co., Connecticut, USA
4.2km (2.6 miles) J Bishop Hill Schorl Locality, East Hampton (Chatham), Middlesex Co., Connecticut, USA
4.2km (2.6 miles) K Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
4.2km (2.6 miles) L Schoonmaker Mine (Cramer Mine), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
4.6km (2.9 miles) M Case Quarries, Portland, Middlesex Co., Connecticut, USA
5.0km (3.1 miles) N Linkpot cut, Airline Railroad, East Hampton (Chatham), Middlesex Co., Connecticut, USA
5.1km (3.2 miles) O Gotta-Walden Prospect, Portland, Middlesex Co., Connecticut, USA
5.3km (3.3 miles) P Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
5.5km (3.4 miles) Q Bordonaro Quarry, Portland, Middlesex Co., Connecticut, USA
5.5km (3.4 miles) R Markham mica Quarry, Hog Hill, East Hampton (Chatham), Middlesex Co., Connecticut, USA
5.7km (3.5 miles) S Gotta-Wannerstrom Quarry, Portland, Middlesex Co., Connecticut, USA
6.0km (3.7 miles) T Reeb Mica Quarry, Hog Hill, East Hampton (Chatham), Middlesex Co., Connecticut, USA
6.0km (3.7 miles) U Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex Co., Connecticut, USA
6.3km (3.9 miles) V Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex Co., Connecticut, USA
6.4km (4.0 miles) W Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
6.4km (4.0 miles) X Becker Quarry, East Hampton (Chatham), Middlesex Co., Connecticut, USA
6.6km (4.1 miles) Y Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
6.6km (4.1 miles) Z Riverside Quarry (Western Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
6.6km (4.1 miles) 0 Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
6.7km (4.2 miles) 1 White Rocks Quarry (Consolidated Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
6.8km (4.2 miles) 2 Unnamed SE quarry (molybdenite locality), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
6.9km (4.3 miles) 3 The Feldspar Corp. Quarry, White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
7.0km (4.3 miles) 4 Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
7.0km (4.4 miles) 5 Griswold Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
7.3km (4.5 miles) 6 Husband Quarry, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
7.3km (4.5 miles) 7 Eureka Quarry, East Hampton (Chatham), Middlesex Co., Connecticut, USA
7.3km (4.6 miles) 8 Unnamed prospects, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
7.4km (4.6 miles) 9 Worth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
Mineral and/or Locality  
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