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

Orthoclase from
BBC Mine, El Dorado County, California, USA


Locality type:Diggings
Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Cleavelanditeā“˜14 photos of Orthoclase associated with Cleavelandite at this locality.
Muscoviteā“˜9 photos of Orthoclase associated with Muscovite at this locality.
Smoky Quartzā“˜8 photos of Orthoclase associated with Smoky Quartz at this locality.
Albiteā“˜7 photos of Orthoclase associated with Albite at this locality.
Schorlā“˜5 photos of Orthoclase associated with Schorl at this locality.
Tourmaline3 photos of Orthoclase associated with Tourmaline at this locality.
Rutileā“˜1 photo of Orthoclase associated with Rutile at this locality.
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view BBC Mine, El Dorado County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1495330
Long-form Identifier:1:3:1495330:1
GUID (UUID V4):37ef4adb-d16c-454f-bbb4-15c3d4bd3de9
Nearest other occurrences of Orthoclase
12.1km (7.5 miles) ā“˜Unnamed Tourmaline occurrence [1], Bucks Bar, Somerset, Fairplay Mining District, El Dorado County, California, USA
21.8km (13.5 miles) ā“˜Cosumnes Copper Mine, Fair Play, Fairplay Mining District, El Dorado County, California, USA
56.2km (34.9 miles) ā“˜Moore Creek Mine (Moore Creek deposit; Bay Horse Mine; Whitehorse; White Horse Mine), Garnet Hill, Calaveras County, California, USA
81.5km (50.6 miles) ā“˜Oriental Mine (Alta Mine), 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
computing publication Geobyte, and in International Mine Computing, generally is of less interest to "hard...originator (which usually indicates outside the USA). Purveyors of some f r ~ products are more than...lamp i (e) Format 2 ~eneric Generic Author. Tit/el-Pages (IPubllshsr, Place Published, Yaarl). Journal...kimberlhz affinitieg in dm Kimberley area, in F.I~Bo~, EL A. O. Meyer, ed*,, Kimberlite6, Diatremm and Diamonds:...igneous rocks. The brainchild of Prof. Felix Chayes (USA), it has developed in the 1980s under the joint aegis
Journal (issue)
Flatirons Facets Flatirons Mineral Club of Boulder County, Colorado Volume 66, Number 3 May-June 2023 Our...field trip of the year to the Edgar Experimental Mine in Idaho Springs. See the Presidentā€™s Message on...we took our first trip to the Edgar Experimental Mine which the Colorado School of Mines runs in Idaho...perks for those involved in the industry. The Edgar Mine holds a special place in my heart as it brings back...mining summer class I attended in 1983, I obtained my Mine Safety and Health Administration underground certification
Journal (article/letter/editorial)
fission tracks in apatite from the Bob Ingersoll mine (0. NAESSER, personal communioation, 1966). 3. ...oversimptication. Furthermore, resort to 720 G. EL Table 4. Age smcl Rb-Sr RILEY data, for some pegmatite...for pegmatite minerals Apparaut Rb Mineral Sample/Mine* 661F H Replicate 663 H Replicate 659 H Rcphcatc...and FAHEY J. J. (1932) Cesium biotite from Custer county, South Dakota. Amrr. Mineral. 17, 173-1ā€™76. MCINTYRE...DESCRIPTIONS Cl. Mt. Rushmore. Road cutting. Lot. NE* BBC.13, T2S, RSE. Gray-white musoovite granite of uniform
Journal (article/letter/editorial)
description: ā€˜coarse-grained with essential quartz and orthoclaseā€™. It is not too difficult to write a structured...keywords ā€˜coarseā€™, ā€˜essentialā€™, ā€˜quartzā€™ and ā€˜orthoclaseā€™ so that the computer is able to identify a granitic...essential. . . and. . . quartz. . .coarse. . .orthoclase. . . with. . . rockā€™ by scanning first for...coarse-grained rock with large phenocrysts of pink orthoclase set in a granular groundmass of grey quartz and...or an alkali-feldspar? User third entry ā€˜Both orthoclase and plagioclase appear to be present.ā€™ INTAL
Journal (article/letter/editorial)
to assign all clinopyroxenes to augite. Thus, orthoclase, microcline, and sanidine all occur in addition..."open", "close", and "indexed" organization. (b) BBC Pascal version: "ival" performs the integer conversion..."reset" is used to cope with external files. Because BBC Pascal does not permit indexed access, a relocatable...(APTGWD@UK.AC.STAFPOL.CR83). The BBC version can be supplied on disk for BBC ISO-Pascal users. Buchanan,...fuzzy systems: Benjamin/Cummings, Menlo Park, California, 190 p. Reeves, M., 1989, MINID---a BASIC program
Journal (article/letter/editorial)
through the Main Mantle Thrust Complex (MMT), it(BBC) eventually enters the Indian Plateā€™s Besham Indian...Complexof(BBC) and flows gneisses, through the Indian Plate rocks. The BBC consists of The BBC consists...(Bioevopeak (BioevopeakInc, Inc.,Seattle, Seattle,WA, WA, USA), and gold granules were recovered for scanning electron...14%. The feldspars recognized as plagioclase, orthoclase, and microcline perthite in the samples are up...An Introduction; John Wiley & Sons: Hoboken, NJ, USA, 2009. Ahmed, N.; Ali, S.H.; Ahmad, M.; Khalid, P
Journal (article/letter/editorial)
kyanite; Mag, magnetite; Opx, orthopyroxene; Or, orthoclase; Rich, richterite; Pg, paragonite; Pig, pigeonite;...composed of the Beit Bridge supracrustal complex (BBC), several grey gneiss formations, and the Messina...and are usually confined to the inner parts of orthoclase grains. In contrast to the granites of the Avoca...Neoarchean structure in the Bait Bridge Complex (BBC) within the Central Zone of the Limpopo complex (Fig...gneissic framing, whose protolith is the rocks of the BBC. The rocks of this structure have been described
Book
Photos, 21 ; Ken Lucas/Visuals Unlimited, 23 (left); BBC Microimaging/Visuals Unlimited, 25; Doug Sokell/...crystals. I -- C H A P T E R T W 0 AN EL E MEN T is a substance made up of only one kind of...Gygsum 3. Ca lcite 4. Fluorite 5. Aeatit~ _ 6. Orthoclase fe~dspar 7. Quartz 8 . Tqpaz 9 . Corundum 10...extract aluminum from ore, companies generally only mine aluminum ore that has at least 30 percent metal...deposits around the wor ld. M N E R A L s California Gold Rush One January day in 1848, a carpenter
Show/Event (guide)
Croydon-based Microsoft consultancy. One of his clients was BBC News where Jolyon spent much o f his time with Windows...during highway construction, Hull Township, Gatineau County, Quebec. P. M. Bellev, R. Rowe & M. Picard. 2:45...e " from the Harder Farm, Hammond, St. Lawrence County, NY. M. Lupulescu. 3:45 H i s t o r y of the Powers...Powers farm streamside veins, St. Lawrence County, New York. M. R. Walter & S. C. Chamberlain. 4:00 M...assemblage from the Allah Cooper/Valcooper mine, Louisa County, Virginia. L. E. Kearns & M. D. Dunn. 4:30
Book
Olivine 39 Limestone 18 Opal 40 Marble 19 Orthoclase 4i Meteorite 20 Plagioclase 42 Mudrocks...lightcoloured mineral in these basic rocks. Quartz and orthoclase feldspar may occur rarely, but as in most igneous...complex in Cornwall, England and San Marcos, California, as well-known examples. Importance/Commercial...cent of visible quartz. The feldspars include orthoclase and plagioclase which are large white or pink...largest craters is found near Winslow, Arizona, USA. It is nearly 1500 m (4,920 ft) across and 180 m
Journal (article/letter/editorial)
the Limpopo Belt (after Boshoff et al., 2006). (BBC), a diagnostic supracrustal unit composed of predominantly...for cordierite-hypersthene assemblages from the BBC. The authors applied cordierite-absent thermobarometers...in garnet-corundum-sapphirine granulites from the BBC also document, according to Droop (1989), a period...investigated calcsilicates and amphibolites of the BBC near the Venetia Kimberlite pipes defining a prograde...plagioclases contain a small amount of the anorthite and orthoclase component respectively. K-feldspars have integrated
Journal (issue)
Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...collection to Colorado mineral dealer Bryan Lees, California dealer Wayne Leicht and British dealer Ian Bruce...Mexico and subsequently transferred to Menlo Park, California, where he was a hydrologist/geologist for almost...stockbroker. Bill was a member of the Northern California Geological Society, the Geological Society of...where he received his PhD. John Watson Fallbrook, California The Mineralogical Record, volume 37, Novemberā€“December
Book (edition)
Wu!fenite. Red Cloud mine, Si/County, Arizona. Smithsonian Institution...District, Cochise County 64 The Tombstone District, Cochise County 70 The Mammoth-St. Anthony Mine, Tiger, Pinal...Pinal County 78 Uranium and Vanadium Deposits 80 Monument Valley 81 - ā€¢ Vll The Cameron Area 85 Breccia...Breccia Pipes 87 Pegmatites 88 "Mine Fire" Minerals, United Verde Mine, Jerome Arizona Meteorites PART... Apache County 435 Cochise County 436 Coconino County 437,438 Gila County 439 Graham County 440 Greenlee
Book (edition)
Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian Institution...District, Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St. Anthony Mine, Tiger, Pinal...Pinal County Uranium and Vanadium Deposits 80 Monument Valley 81 63 78 il S: The Cameron Area 85...Breccia Pipes 87 Pegmatites 88 ā€œMine Fireā€ Minerals, United Verde Mine, Jerome Arizona Meteorites 93 PART...Apache County ā€” 435 Cochise County 436 Coconino County 437, 438 Gila County 439 Graham County Greenlee
Journal (issue)
.......................... Trial at Brandy Gill Mine ... ..............................................Posnjakite, connellite and other minerals from Crinnis Mine, Cornwall Meeting & Field Trip Reports ...........has benefited from the dataset, principally of old mine sites, put together for the earlier study of Bevins...For two of the GCR sites (Machen Quarry, Mwyndy Mine), the current project was asked to propose RIGS...An area of tip at the west end of the old Mwyndy Mine (south of Llantrisant) is now a GCR site (also RIGS
Book (edition)
McDonald Co\Ā·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones...report for California and Arizona. William Blake was the state mineralogist for California in 1866. From...southeastern corner of California, the southern portion of Arizona, and Sonora and Baja California, ;\Iex.ico.The...gemandmineralmuseum.arizona.edu) is located in the old Pima County Courthouse building at 115 North Church Avenue...found in Arizona, as well as from Sonora and Baja California, Mexico. Currently, the collection holds more
Journal (issue)
tales of family involvement with a far-away Diamond Mine (didn't everybody have one?) which onlyproduced...coloured, transparent gemstone found only in California, USA. C Country in which glassy tektites (moldavites)...green, hydrous phosphate material found in Utah, USA. W Way in which rocks are broken down naturally....Rontgen in the year 1 895. Y Usual colour of orthoclase feldspar. Z Metallic element component of the...trade. The hobby of lapidary was booming in the USA and, as happens often , the United Kingdon followed
Journal (issue)
.................................... 17 DAOPING MINE Guanghua Liu and Berthold Ottens .................crystal, 2.1 cm, from the Dadongla (Yunchangping) mine near Tongren, Guizhou Province, China. Marcus Budil...Xikuangshan, the site of the worldā€™s largest stibnite mine. Berthold Ottens is a German dealer and author of...today, near the ancient mine workings, there is a large open-pit copper mine which provides small calcite...1121 B.C. There in 1973 a 3,000-year-old copper mine with smelting facilities was discovered on Mt. Verdigris
Journal (issue)
Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...common throughout the district. The Minerva No. 1 mine near Cave-inRock has been the premier specimen producer...calcite specimens from a new pocket in the Minerva mine. Associated with the calcites are 1 to 2-mm white...published studies specific to the Minerva No. 1 mine, but Lillie (1988) gives a lucid explanation of...makes frequent reference to Minerva mine minerals. The Minerva No. 1 mine, located in the NW '/4 of the SE
Report (issue)
expanded shale plant, Summit County, Utah Holnamā€™s Devilā€™s Slide plant, Morgan County, Utah !7IB5F7-jbgfej...THE INTERMOUNTAIN WEST FORUM 1999 Salt Lake City County Building constructed of Kyune Sandstone Proceedings...surficial geology of the state at a regional scale by county and at a more detailed scale by quadrangle. The...mining heritage via an underground mine tour of the Ontario mine and to enjoy the scenery and amenities...New Brunswick/ Halifax, Nova Scotia, CAN 31 1995 El Paso, TX 32 1996 Laramie, WY 33 1997 Quebec
Journal (issue)
Madagascar | Sphalerite from Balmat, New York, USA | Tourmaline from Calabar, Nigeria | Sapphire Coloured...Alonso-Perez Harvard University, Cambridge, Massachusetts, USA Alan D. Hart Gem-A, London Karl Schmetzer Petershausen...Edward Boehm RareSource, Chattanooga, Tennessee, USA Brian Jackson National Museums Scotland, Edinburgh...Johnson Mary Johnson Consulting, San Diego, California, USA Alan T. Collins Kingā€™s College London Stefanos...Emmett Crystal Chemistry, Brush Prairie, Washington, USA Emmanuel Fritsch University of Nantes, France Rui
Book
blast Sy Ā©) Sie 1) e. piueMig sive ist esate aie el) bulene shay. >, iv! bh (etme a)oe MINERALS APPLICABLE...may OF MING ROCKS Ate ae ā€” leE ROCKS ee el ! f : ' oh B A 3 V/,- S L elt ie 7Z...Graphite.ā€”Lot 3, range II. of Grenville, Argenteuil county, Q.ā€”Coll., R. Bell, 1856. (1228.) ā€” columnar.ā€”ā€”Lot...Ottawa county, Q.ā€” Coll., H. G. Monae 1877. (1249.) ā€” Walkerā€™s property, Buckingham, Ottawa county, Q.ā€”Coll...Ottawa county, Q.ā€”Coll., Table-case 49, E. D. Ingall, 1891. (5186.) ā€” Lochaber, Ottawa county, Q. (1254
Journal (article/letter/editorial)
3b) and comprise rocks of the Beit Bridge Complex (BBC) (protolith age āˆ¼3.7ā€“3.36 Ga) intruded by precursors...River gneisses presently occur intercalated with the BBC gneisses, and are intruded by rocks of the Musina...the āˆ¼2.65 Ga TTG gneisses were emplaced into the BBC rocks, and subsequent deformation and metamorphism...gneisses. 75 All high-grade rocks, including the BBC and Alldays gneisses were subsequently intruded by...Irregularly shaped K-feldspar (both microcline and orthoclase) occurs closely associated with biotite, garnet
Journal (article/letter/editorial)
referred to as the Beit Bridge Complex (BBC). The age of the BBC still remains imprecise: its maximum age...the ~2.0 Ga tectono-metamorphic event M3/D3. The BBC thrusted over the Bulai Pluton during M3/D3 as evidenced...xenoliths of the country rocks (metapelites from the BBC, Singelele gneiss; Fig. 3c); and 2) small (b30 cm)...al. / Lithos 123 (2011) 73ā€“91 of quartz and orthoclase. These rocks often present a granoblastic texture...batholiths of the Sierra Nevada and peninsular ranges, California. Journal of Geophysical Research 86 (B11), 10470ā€“10488
Journal (issue)
Stevenson. This was a veritable mine of of inif one can have a mine for pearls. When formation - if I...Wednesday, 3 May 1989, at 11.00 hours, Long Wave, the BBC broadcast an excellent programme on Radio 4. It was...1991,22, 6 334 Gem thaumasite from the Black Rock Mine, South South Mrica Africa Ulrich Henn, Markus...associated with sulfidic ores (e.g. Sweden, Tennessee/USA), 2. in cavities of of basic effusive effusive rocks...metamorphic rocks (e.g. Hungary, Austria, New Jersey/USA), 3. in limestone contact zones associateq associated
 
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 Ā© 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 4, 2024 23:48:28
Go to top of page