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Microcline from
Case Quarries, Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Microcline
Formula:K(AlSi3O8)
Comments:aka - perthite. A major rock-forming component of the pegmatites, the largest and best crystals terminate in the quartz cores and can reach over 20 cm.
Habit:anhedral to subhedral blocky
Colour:white, tan, pale pink
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Abundance at site:Extremely common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Smoky Quartz10 photos of Microcline associated with Smoky Quartz at this locality.
Albite4 photos of Microcline associated with Albite at this locality.
Beryl3 photos of Microcline associated with Beryl at this locality.
Muscovite2 photos of Microcline associated with Muscovite at this locality.
Columbite-(Fe)2 photos of Microcline associated with Columbite-(Fe) at this locality.
Chalcopyrite2 photos of Microcline associated with Chalcopyrite at this locality.
Bismutite2 photos of Microcline associated with Bismutite at this locality.
Bismuthinite2 photos of Microcline associated with Bismuthinite at this locality.
Almandine1 photo of Microcline associated with Almandine at this locality.
Data
Mineral Data:Click here to view Microcline data
Locality Data:Click here to view Case Quarries, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:132523
Long-form Identifier:1:3:132523:2
GUID (UUID V4):a6a90237-9fae-45c1-91de-ef6d4b1af32d
Nearest other occurrences of Microcline
0.8km (0.5 miles) Appletree Lane, Portland, Middlesex County, Connecticut, USA
1.3km (0.8 miles) Gotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
1.4km (0.9 miles) Gotta-Wannerstrom Quarry, Portland, Middlesex County, Connecticut, USA
1.4km (0.9 miles) Bordonaro Quarry, Portland, Middlesex County, Connecticut, USA
1.5km (1.0 miles) Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
1.5km (1.0 miles) Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
1.8km (1.1 miles) Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.9km (1.2 miles) Simpson prospect #3, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.9km (1.2 miles) Simpson prospect #2, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.9km (1.2 miles) Simpson prospect #1, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
CONNECTICUT Mineral Locality Index Although many sites in Connecticut are no longer open to collectors...H. WEBER 1172 West L a k e Avenue Guilford, Connecticut 06437-1342 E A R L E C. SULLIVAN 17 R o c k y...y R i d g e D r i v e T r u m b u l l , Connecticut 06611-5326 T his locality index is meant to serve...collectors. More often than not, collecting in Connecticut is no longer per­ mitted. Many of the localities...effort has been made to list a l l localities in Connecticut, a small state that is big on mineralization
Book (edition)
THE MINERAL LOCALITIES OF CONNECTICUT AND SOUTHEASTERN NEW YORK * «-• r ** K* ysf^ :' •'’S >- n...250 SPECIES iBooks by Ronald Everett Januzzi CONNECTICUT MINERALS ON PARADE NEW YORK STATE MINERALS ON...THE MINERALOGICAL PRESS 83 Elm Street Danbury. Connecticut IIOIPW MINERALS ON PARAt>E F.tMSTltIP* THREE...to enrich our knowledge of the mineralogy of Connecticut: James Dwight Dana Samuel L. Penfield Edward...Minerals from the Principal Localities in Western Connecticut and Southeastern New York State.............
Journal (article/letter/editorial)
I S L O C A T E D about 25 miles northeast of Portland along Interstate Route 95 just across the Andros­...Andros­ coggin River from Brunswick in Sagadahoc County. A mile-wide belt of granitic pegmatites runs from...thirty or more named quarries and numerous unnamed prospects in Topsham. The quarries, all inactive, are...was built in 1872 and leased properties on which quarries were then opened. A jaw crusher, three wet grinding...specimens being collected almost as soon as the quarries were opened. The Topsham history (Wheeler and
Journal (article/letter/editorial)
Wollastonite and Titanite Near Natural Bridge, Lewis County, New York, 78; 13th Rochester Academy of Science...in Specimen Miner­ alogy, 114 Connecticut, Litchfield hematite, 319; Case quarry beryl, 116 Cookeite, 190... W., Mineralization at the Fanwood and Summit Quarries, New Jersey, 150 Cureton, F . E . and M. E . ...Pegmatite Bodies in the Wausaw Pluton, Marathon County, Wisconsin, 188 Fascinating Story of Mount Mica's...Localities in the Beaver Creek Area of St. Lawrence County, New York, W. S. Condon, S. C. Chamberlain, 105
Book (volume)
.........................................94 Connecticut ..............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map ................................................................................49 Arkansas County Map ..........................................
Book (volume)
.........................................80 Connecticut ...............................................are capitalized while rocks have been left lower case. This is the 5th printing and each time updates...rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a
Book (volume)
.........................................80 Connecticut ...............................................are capitalized while rocks have been left lower case. This is the 5th printing and each time updates...rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a
Journal (article/letter/editorial)
90 MINERALS FROM 1 CONNECTICUT HILL By Richard Schooner P. O. Box 215 East Hampton, Conn. Collins Hill...Hill, in the town of Portland, undoubtedly represents the most remarkably mineralized area, of its size...Therefore, he is contenting himself, in this particular case, with merely providing an outline of the facts....from the alteration of bismutite, as at the Case Quarries in the same town. BISMUTHINITE should be fairly...of diopside and actinolite, at Collins Hill. MICROCLINE is a very abundant feldspar at Collins Hill,
Journal (article/letter/editorial)
T H E CHRISTY P I T , MAGNET COVE, HOT SPRINGS COUNTY, A R K A N ­ 4 2 SAS. H. L . Bar wood, Arkansas...occurrence of eggonite at Wilson Springs, Garland County, Arkansas, contains 12 percent F e 0 . Other minerals...as shown. Although these pyrite over­ Randolph County in southwestern Illinois. Specimens were growths...that crosses Cotton Hill Road in Port­ land, Connecticut. The new pegmatite was uncovered by a collector...area of the Grenville Lowlands in St. Law­ rence County, New York. U.S.G.S. Prof. Paper 1279, 21 pp. Quartz
Book (volume)
Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal step cut violetish pink...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75...campaign would produce results, or, in the worst case, eliminate barren areas from further consideration...Cantlin, Ellis, [D; Jeannette B. Carillo, Gem Center USA, EI Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill O. Murphy
Book (edition)
MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...offers substantial rock and gem resources. As old quarries become dumps, old mines fall into ruins and the...collector, especially in Maine, New Hampshire, Connecticut, New Jersey, Virginia, and North Carolina. In...beds, gravel pits, mine dumps, road cuts, and quarries. Some gems agate, petrified wood, crystals may...shafts are obvious dangers; so are water-filled quarries. One of the major sources of accidents occurs
Book (volume)
Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...campaign would produce results, or, in the worst case, eliminate barren areas from further consideration...Cantlin, Ellis, ID; Jeannette B. Carillo, Gen1 Center USA, El Paso, TX; Gary Christopher, The Prospectors Cache...Resources, Vancouver, BC; Barbara L. Muntyan, Ouray County Historical Society, Ouray, CO; Merrill 0. Murphy... 15 Figure 6. Dallas Gem Mine in San Benito County, CA...........................................
Book
HfiRIN COUNTY FREE LIBRfiRY 311110G386652Q I V Russell P MacFal A COLOR TREASUF FOR COLLECTORS...to Hunting Locations ? i 9 GIVEN TO THE MARIN COUNTY LIBRARY BY MARI N L MTNF.RAT. SOCTETY DAVID...LOOK Freestanding Crystals Cavities Abandoned Quarries and Mines When and How to Go Immovable Areas...boulders one be worn splinters. m «f » in quarries or when collecting come could down hurtling...COLLECTING change rapidly, especially when it comes to quarries and road construction To avoid disappointment
Report (volume)
north-east of Dehra. With the single exception of a case noticed by Mr. Mallet in the Bhnt>4,n Dudrs (Memoirs...of older hornblendic rock are Very masses fw quarries are to be found^ and a||6 common in places...jpassant than inraore^civilised regions whe^e quarries are numerous. > Records of the Geological Surrey...Ohintaknrti inliers. The schistose spread in that case is simply a survival (if the term be allowable with...Chintakurti iiiliers. The schistose spread in that case is simply a survival (if the term bo allowable with
 
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