Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Muscovite from
Gotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA


07622240015373547123050.jpg
Muscovite

Gotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
07622240015373547123050.jpg
Muscovite

Gotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
02201480015373547212094.jpg
Muscovite

Gotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
Locality type:Prospect
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Comments:Muscovite books 2 to 25 inches in diameter and Β½ to 12 inches thick. Many of the mica crystals are elongate parallel to the C-axis. (Cameron et al 1954)
Colour:gray
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Berylβ“˜3 photos of Muscovite associated with Beryl at this locality.
Quartzβ“˜3 photos of Muscovite associated with Quartz at this locality.
Microclineβ“˜2 photos of Muscovite associated with Microcline at this locality.
Garnet Groupβ“˜2 photos of Muscovite associated with Garnet Group at this locality.
Schorlβ“˜1 photo of Muscovite associated with Schorl at this locality.
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Gotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:686889
Long-form Identifier:1:3:686889:5
GUID (UUID V4):4dd86acd-8696-4988-b1a4-e4dbb88f62bf
Nearest other occurrences of Muscovite
0.2km (0.1 miles) β“˜Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
0.4km (0.2 miles) β“˜Bordonaro Quarry, Portland, Middlesex County, Connecticut, USA
0.7km (0.4 miles) β“˜Gotta-Wannerstrom Quarry, Portland, Middlesex County, Connecticut, USA
0.7km (0.5 miles) β“˜Appletree Lane, Portland, Middlesex County, Connecticut, USA
1.1km (0.7 miles) β“˜Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
1.3km (0.8 miles) β“˜Case Quarries, Portland, Middlesex County, Connecticut, USA
1.4km (0.9 miles) β“˜Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.8km (1.1 miles) β“˜Cape Hall Quarry, Portland, Middlesex County, Connecticut, USA
1.9km (1.2 miles) β“˜Pratt Quarry, Portland, Middlesex County, Connecticut, USA
2.0km (1.3 miles) β“˜Simpson prospect #3, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
References
Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255
Reference Search (possible matching items)
(1958) Pegmatites of the Middletown area, Connecticut. Bulletin Vol. 1042. US Geological Survey doi:10.3133/b1042q
Report (volume)
Pegmatites of the Middletown Area Connecticut GEOLOGICAL SU R V EY BULLETIN This report concerns work...GEOLOGY PEGMATITES OF THE MIDDLETOWN AREA, CONNECTICUT By FREDERICK STUGARD, JR. ABSTRACT The pegmatites...Middletown area in Connecticut have been mined almost continuously for feldspar and muscovite mica since about...essentially of perthite, quartz, plagioclase, and muscovite. The common accessories are tourmaline, beryl...characteristics are usually richer in perthite, albite, muscovite, or quartz. The grain size increases from the
Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255
Report (issue)
___ _ Geology of the pegmatite districts of Connecticut ___ _ Geology of the Middletown district ___________...characteristics of mica _________________ _ Properties of muscovite _____________________ _ Structural imperfections...Androscoggin County ______________________ _ Berry feldspar quarry __________________ _ Cumberland County ___..._______________________ _ Oxford County ____________________________ _ Barrett beryl prospect __________________ _...Brown-Thurston beryl prospect __________ _ Bumpus feldspar quarry ________________ _ Donahue mica prospect _________________
MacFall, Russell P. (1969) Gem Hunter's Guide (4th ed.) Thomas Y. Crowell Company, New York.
Book (edition)
describes sites under of the nearest town and county. and the many maps included book contain such...locating and identifying gems is needed if you are to prospect successfully. The basic information is neither...in the dike. Such pegmatite dikes in Maine, Connecticut, New Hampshire, North Carolina, South Dakota...collector, especially in Maine, New Hampshire, Connecticut, New Jersey, Virginia, and North Carolina. In...pink hue (right) from the Sunnyside Mine, San Juan County, Colorado. MOTTLED AGATE from Chihuahua, Mexico
 
and/or  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are Β© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 6, 2024 04:08:33
Go to top of page