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

Almandine from
Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Almandine
Formula:Fe32+Al2(SiO4)3
Comments:commonly massive and with fluorapatite, in the outer 3 to 5 feet of the western pegmatite, XRF testing of one garnet revealed 63% Fe, 37% Mn.
Habit:dodecahedral
Colour:maroon to red
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorapatite3 photos of Almandine associated with Fluorapatite at this locality.
Albite3 photos of Almandine associated with Albite at this locality.
Quartz3 photos of Almandine associated with Quartz at this locality.
Muscovite1 photo of Almandine associated with Muscovite at this locality.
Opal-AN1 photo of Almandine associated with Opal-AN at this locality.
Data
Mineral Data:Click here to view Almandine data
Locality Data:Click here to view Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:37694
Long-form Identifier:1:3:37694:9
GUID (UUID V4):8ed56194-ff32-483a-abc8-71056e6d1865
Nearest other occurrences of Almandine
0.4km (0.2 miles) Bordonaro Quarry, Portland, Middlesex County, Connecticut, USA
1.2km (0.7 miles) Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
1.5km (1.0 miles) Case Quarries, Portland, Middlesex County, Connecticut, USA
2.3km (1.4 miles) Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.3km (1.4 miles) Howe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.5km (1.6 miles) Pelton's Quarry, Portland, Middlesex County, Connecticut, USA
2.6km (1.6 miles) Griswold Quarry, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.8km (1.7 miles) Hollister prospects, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.9km (1.8 miles) Gas pipeline excavation, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.9km (1.8 miles) Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex 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
Journal (article/letter/editorial)
Connecticut Gems & Gem Minerals A variety of Connecticut's beautiful gemstones are represented in East...hydrothermal veins to metamorphic trap rocks—have produced gem minerals. Some species, such as datolite, are of...earlier years, several Connecticut lo­ calities were successfully mined for gem rough; these com­ mercial...included the Gillette quarry (elbaite), Roe­ bling mine (beryl), and Slocum quarry (beryl). Harte (1944)...(1944) states that "Connecticut has produced a very considerable number of gem stones in the semi-precious
Journal (article/letter/editorial)
QUARRIES AND MINERALS OF SOUTH GLASTONBURY, CONNECTICUT. J. H. Betts, 215 W. 98th St., #2F, New York...old pegmatite quarries in South Glastonbury, Connecticut. This region was exploited sporadically by collectors...in the Mid196 ROCKS 81MINERALS dletown-Portland, Connecticut, pegmatite district. They are found in South...Glastonbury, about 5 miles north-northeast of Portland, just east of Route 17. The area is roughly triangular...the Simpson quarry on the south, the Hollister quarry on the east, and the Howe No. 4 quarry on the north
Journal (article/letter/editorial)
the Dayton Road District SOUTH GLASTONBURY, CONNECTICUT JOHN H. BETTS 215 West 98 Street, Apt. 2F New...of the most promising forgotten locations in Connecticut is an area of old pegmatite quarries in South...article are the northernmost in the Middletown-Portland pegmatite district (fig. 1). They are in South...miles north-northeast of Portland, Connecticut, just north of the Portland-South Glastonbury town line...the Simpson quarry on the south, the Hollister quarry on the east, and the Howe No. 4 quarry on the north
Book
had access to many quarries in the state of Connecticut. Gem-quality tourmaline crystals had been found...like this piece, as most of the fluorites from the quarry are green, and this one is truly atypical. After...and dealer. Today, in 2008, the only place in Connecticut where such finds can be easily collected is Green’s...COVER: gold on quartz, 4.5 inches tall, Placer County, California Dedication This book is dedicated...Group, Inc., 650 Danbury Road, Ridgefield, CT 06877 USA, www.maplegatemedia.com Library of Congress Control
Book (edition)
unique and valuable reference by every collector, gem cutter, miner, geologist, mineralogist, jeweler,...from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...Arkansas crystal 3. Star of Arkansas marquise cut gem 4. Mounce diamond crystal 5. Gibson's Ruby mine,...Texas 20. Little Three mine, Ramona, California 21. Gem-bearing pocket in pegmatite, Baja California 22....tourmaline crystal forms 38. Map of San Diego County, California gem sources 3 9. Stewart Lithia· and Tourmaline
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... His works are known to almost every collector, gem cutter, gemologist, and mineralogist. His writings...newer events to bring the history of North American gem mining up to date. Here, then, is the latest, most...of turquoise and peridot, although for the latter gem, much larger facetable rough crystals appear with
Book (volume)
have measured from 18’ to 27’ long. In addition, gem Garnets, Quartz crystals, Topaz and Tourmaline add...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE:  area ridges, slopes, stream beds...Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles
Book (volume)
rivaling in beauty the Arizona agatized wood. This gem flint occurs in the 8 mile long Flint Ridge, between...the western counties, especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE
Book (volume)
rivaling in beauty the Arizona agatized wood. This gem flint occurs in the 8 mile long Flint Ridge, between...the western counties, especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE
Book
MineralogicalRecord.com I IIMORIITE-(Y) EUROPE FRANCE Trimouns quarry, Luzenac, Ariege. Operated for talc since the beginning...beginning of the 20th century, the Trimouns quarry became well known to collectors around 1990 for the...long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...5 cm (Grice and Gault, 1981). CONNECTICUT Litchfield, Litchfield County. Ilmenite masses and crystals
Book (volume)
Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75... His works are known to almost every collector, gem cutter, gemologist, and mineralogist. His writings...newer events to bring the history of North American gem 1nining up to date. Here, then, is the latest, most...of turquoise and peridot, although for the latter gem, much larger facetable rough crystals appear with...will make it easier for readers to investigate the gem literature further or to obtain those references
Book
notes and compressed on to the major sources gem materials. a colossal (Continued on amount back...Biblical Other The and and Beryl in Indian Gem Lore, Modern Europe Lapidaries, 24 Early Lapidaries...According 14. World Sources of Ore and to Gem Beryl Color, 327 Immersion Fluids for Afghanistan... specimens the rich green of other recorded gem recognized the mica as a even a ore is distinct...goshenite. Emerald beyond suggested by as use clear gem containing pebbles of aquamarine, it Asia, And
Book
Rock-Hunter's Range Guide Petrified Forest Trails Arizona Gem Trails and the Colorado Desert of California High...Denny, whose thirty years of lapidary production of gem stone jewelry may be found in hundreds of West Coast...Maps as Guides to New Fields; Other Maps Useful to Gem and Mineral Hunters viii Contents 7. Care and...Cataloging Specimens; Taking Photographs 8. Your Gem and Mineral Collection 114 General Organization;...Alaska Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois
Book
Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...assemblages have been mapped in exposed basaltic rock in County Antrim, Northern Ireland, and eastern Iceland....seawater followed faults along the eastern coast of County Antrim and was the fluid in the cavities that produced...HEXOCTAHEDRON {345} TRISOCTAHEDRON {233} BOYLSTONE QUARRY, BOYLSTONE QUARRY GLASGLOW, SCOTLAND, U.K. GLASGLOW, SCOTLAND...across, with cube faces from the Magheramore Quarry, Lame, County Antrim, Northern Ireland, U.K.; SEM photo
Book
Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...assemblages have been mapped in exposed basaltic rock in County Antrim, Northern Ireland, and eastern Iceland....seawater followed faults along the eastern coast of County Antrim and was the fluid in the cavities that produced...HEXOCTAHEDRON {345} TRISOCTAHEDRON {233} BOYLSTONE QUARRY, BOYLSTONE QUARRY GLASGLOW, SCOTLAND, U.K. GLASGLOW, SCOTLAND...across, with cube faces from the Magheramore Quarry, Lame, County Antrim, Northern Ireland, U.K.; SEM photo
 
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 © 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 10, 2024 14:03:23
Go to top of page