 | | Journal (issue) | | CONTENTS Page Feature Articles: The Coolgardie pegmatite field, Western Australia Mark I. Jacobson ......Mineralogy Vol 3, No 2, December 1997 %e Coo(gardie Pegmatite :fie[� 'Western .9Lustrafia Mark I. Jacobson Chevron...70593 California, USA This n otable Australian pegmatite locality has produced a range of lithium minerals...the Western Australian outback, an abundance of pegmatite fields stretch from the fiercely hot and arid...Cattlin Creek pegmatite field,near Ravensthorpe in the south. The Coolgardie pegmatite field, near the |  | | Book | | [the Santa Lucia and Sa Duchessa mines,] Sardinia [Italy] (by F. Olmi, C. Sabelli & G. Brizzi) 19:305-310...CLAUDIO Famous mineral localities: Baveno, Italy 14:157168 ALBITE Davis Hill near Bancroft, Ontario: an occurrence...occurrence of large nepheline, biotite and albite-antiperthite crystals in calcite-cored vein-dikes (by...8:287-293 Minerals of the Alpine rodingites of Italy (by C. M. Gramaccioli) 10:85-89 Micromounting in...Strontian crandallite from the Alto Benedeto pegmatite, Parai'ba, Brazil (by J.P. Cassedanne & L. Barreto) |  | | Journal (article/letter/editorial) | | The gemmy, intense purple apatites from this pegmatite mine have made Pulsifer the premier locality for...County, Massachusetts. Rather than a granite pegmatite, the geological environment in which this specimen...variety of orthoclase, the pericline variety of albite, calcite, epidote, muscovite, quartz, titanite...University, Oxford, Ohio. Figure 1. Fluorapatite on albite with chlorite, 11.5 cm tall, Acushnet quarry, Bristol...any more material. They found pericline variety albite coated and uncoated with chlorite and a few small |  | | Report (issue) | | William "Skip" Simmons and Alexander Falster, pegmatite specialists from the University of New Orleans...pegmatites. Most ore beryl occurs in massive pegmatite zones where crystals may reach considerable size...can be found adjacent to the core margin of the pegmatite and in Suggested Chromophores for Beryl Color-generating...the world's largest known beryl crystal is a pegmatite at Malakialina, Madagascar, which produced one...the giant-sized crystals found in the massive pegmatite portions. Morphology Beryl crystals are hexagonal |  | | Journal (article/letter/editorial) | | to the sodic end of the solid solution between albite, NaAlSi3O8, and anorthite, CaAl2Si2O8. Dr. David...the potassic end of the solid solution between albite, NaAlSi3O8, and one of the K-feldspar species,...alkali feldspar is coarsely perthitic (consisting of albite lamellae exsolved from host alkali feldspar), the...(b) Beryl variety aquamarine with spessartine on albite and muscovite, 11.5 × 11.0 × 7.0 cm, Haramosh Mountains...photo. (c) Beryl variety morganite with “schorl” on albite, 16.8 × 16.0 × 14.3 cm, Urucum mine, Minas Gerais |  | | Journal (article/letter/editorial) | | buddingtonite is much rarer than the species microcline and albite.) The word specie is not the singular of species...Spertini during a collecting trip to the locality. Albite, allanite, andalusite, anthophyllite, apophyllite...Hampton submitted several samples from an unnamed pegmatite feldspar mine in Middleton. Two of the specimens...x 4 cm and consists of cleavelandite variety of albite, buff microcline, smokey quartz, lepi dolite,...Maine Mt. Mica Albite Mr. Duane Leavitt of Buckfield has found some inter esting albite crystals from |  | | Journal (article/letter/editorial) | | throughout the Wausau complex. I n the massive pegmatite, it commonly forms brown prismatic crystals surrounded...heart-shaped albite twins were found (see drawings). Goniometric and X-ray studies show that these albite crystals...ism with (010) of the other. Baveno twinning in albite was described over 150 years ago, but is very uncommon...modes. I n the first, they pro ject from a dense albite matrix, which often forms a coat ing around aegirine...crystals, and are associated with more frequent platy albite crystals showing typical contact twin ning on |  | | Journal (article/letter/editorial) | | MINERALOGY OF AN EVOLVED DICKINSON COUNTY, MICHIGAN, PEGMATITE. T. W. Buchholz1, A. U. Falster 2, W. B. Simmons2...(1961) documented approximately ninety known pegmatite occurrences in central Dickinson County in the...Upper Peninsula of Michigan. A small beryl-rich pegmatite was investigated to describe its mineralogy and...determine its degree of geochemical evolution. The pegmatite is emplaced in Lower Proterozoic metamorphic rocks...probable that the pegmatite is late- to post-Penokean in age. Local control for pegmatite emplacement appears |  | | Journal (article/letter/editorial) | | Mines and Minerals of the California Pegmatite Province Downloaded by [Pennsylvania State University]...the past century, the Southern California pegmatite province has been the source of some of the world’s...left page). Map of the Southern California pegmatite province, including location of major specimen-producing...(above). Beryl, variety aquamarine, 6 cm tall, on albite and muscovite, Audrey Lynn claim, Cahuilla Mountain...Geology and Geography The Southern California pegmatite province is a mountainous, semiarid region located |  | | Journal (issue) | | ................................. 2 Himalaya pegmatite,...................................................................................... 2 Unnamed pegmatite occurrence, Volcan Mountains ....................................... 3 Brown Derby no. 1 pegmatite ............................................................................... 3 Ridgefield pegmatite,............................................................................... 3 Strickland pegmatite, ............................................ |  | | Journal (issue) | | crystal cluster, 7.3 cm, from near Bapu, Guangdong Province, China. Rob Lavinsky specimen, now in the Tom...but Espenshade (1954) identifies it as a short unnamed inclined adit accompanied by a small dump about...the Hesse-Nassau Province in Germany. During the next two years Ahlfeld visited Italy, Austria, Yugoslavia...the José Lippeheide mining company in the Basque province between 1953 and 1954. He published his monograph...Survey, GEOBOL. In 1963 he mapped the Ayopaya province for the German Mission at the age of 71, quite |  | | Book | | 2013). MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series...numerous crystal pockets, associated with small albite crystals; the platy, flattened-rhombohedral ilmenite...Swiss hematite iron roses are quartz, ortboclase, albite, rutile, and zeolites (especially stilbite), whereas...resting on cavity linings of sharp, opaque white albite ("pericline") crystals emerged from Imilchil around...their circumferences, occur in matrix of white albite, sometimes with the brown zircon crystals. Evseev |  | | Book | | Roland Bouhelier in 1973 from the "Bouhelier pegmatite", and shortly thereafter acquired by the Canadian...Organic compounds 491 Partially studied and unnamed MSH minerals 494 Gemstones 514 Pseudomorphs...an accumulated repository of partially studied (unnamed) minerals. This is likely to continue for many...concerning the origin of the Monteregian Hills alkaline province, and a brief description of each member. The geology...and partially studied and unnamed (UK) minerals. For the unresolved unnamed minerals, all available technical |  | Kampf, A. R., Adams, P. M., Kolitsch, U., Steele, I. M. (2009) Meurigite-Na, a new species, and the relationship between phosphofibrite and meurigite. American Mineralogist, 94 (5) 720-727 doi:10.2138/am.2009.3134 | Journal (article/letter/editorial) | | quarry in Victoria, Australia, and at an unnamed pegmatite prospect near Linopolis, Minas Gerais, Brazil...muscovite, and quartz on a specimen from an unnamed pegmatite prospect near Linopolis, Minas Gerais, Brazil...defocused beam. The standards used were: Amelia albite (Na), asbestos microcline (K), anorthite glass |  | | Journal (issue) | | the U.S., Germany, Austria, Switzerland, France, Italy, Great Britain, Hungary, Yugoslavia, Romania, Ceylon...with tourmaline, have sustained the Golconda pegmatite field’s reputation as among the most important...districts in all of Brazil. INTRODUCTION The Golconda Pegmatite Field is a familiar name to mineral collectors...for mica produced in Minas Gerais. A rich, new pegmatite deposit in the Brazilian Golconda area, best known...including the region now known as the Eastern Pegmatite Province. Just below the center can be seen the Rio |  | | Journal (issue) | | e r a lo j g ic a l Volume Eight/Number Two PEGMATITE ISSUE #1 p u b lis h e r ls * h n Q n i. • ;...83 by R. Lasmanis The Clear Creek Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas............. Iores K IO i DITOR Here it is: our first Pegmatite Issue! Actually this accumulation is a happy accident;...our file of articles I realized we had enough pegmatite-related papers to fill an issue. One advantage...a certain article. The article on the Harding pegmatite, for instance, may not cause “Vol. 8, no. 2!” |  | | Journal (article/letter/editorial) | | beryllium and the crustal Be cycle from migmatite to pegmatite JOSEPH M. EVENSEN*† and DAVID LONDON School of...from 680 – 850°C), quartz (0.24 at 800°C), and albite (0.10 at 750°C). The partition coefficients are...08 from 750 – 800°C), but higher in the case of albite (0.37 at 750°C). With other data sources, these...the final stages of the petrogenesis of granite–pegmatite systems. In combination with reported data on...(pegmatitic) Na-alkali feldspar Plagioclase Albite Albite (pegmatitic) Oligoclase Andesine Quartz Quartz |  | London, D., Morgan, G. B., Paul, K. A., Guttery, B. M. (2012) Internal Evolution of Miarolitic Granitic Pegmatites at the Little Three Mine, Ramona, California, USA. The Canadian Mineralogist, 50 (4) 1025-1054 doi:10.3749/canmin.50.4.1025 | Journal (article/letter/editorial) | | the temperatures recorded by feldspars in the pegmatite that surrounds the miarolitic pockets, then the...compositions. Keywords: miarolitic, granitic pegmatite, modal analysis, bulk composition, alkali feldspars...Little Three mine are located within the Ramona pegmatite district, ~7.5 km east of Ramona, San Diego County...The Main dike contains the thickest section of pegmatite, 1026 the canadian mineralogist up to ~2.5...dikes in Foord et al. (1989). Other small, unnamed pegmatite dikes occur on the property. Geometry of the |  | | Journal (issue) | | part of the Monteregian Hills alkaline igneous province. LOCATION The Francon quarry is unusual in being...Proterozoic Grenville Province, and on the southeast by the Humber Zone of the Appalachian Province. The sedimentary...Zone marks the western edge of the Appalachian Province. In the Montreal area, the Taconic Orogeny is...Hills alkaline igneous province its name (Adams, 1903). The Monteregian Province comprises an east-southeast-trending...which intrudes Proterozoic rocks of the Grenville Province; the major plutons Mont Royal, Mont SaintBruno |  | | Journal (article/letter/editorial) | | hambergite, danburite, and axinite from three pegmatite dikes (named Main, US Swamp, and Spessartine)...patterns of δ11BTur from margin-to-core of each pegmatite attest to a negligible fractionation of boron...only the bulk isotopic US composition of the pegmatite-forming melts. KEYWORDS AC CE PT ED M AN...influx of fluids from the host rock into the pegmatite (Trumbull et al., 2013). 3 ACCEPTED MANUSCRIPT...using the boron isotopic composition of each pegmatite to ascertain the likely source of the T boron |  | | Book (volume) | | California, is arguably the most important gem-pegmatite district in North America. Its wealth of tourmalines...towns, counties, and districts in each state and province arranged alphabetically; with an appendix, containing...Mine in Topsham: both are small open pits in pegmatite. Morrill et al. (l 958) relieves the problem by...standard labeling procedures when they collect at unnamed sites. Locality data should be referred to nearby...addition to lacking verifiability. There are few unnamed spots in Maine. When a specific locality within |  | | Report (issue) | | .. 42 ?. Muscovite in the vail zone of the pegmatite in tha Meadow mine, Avery Co. ..................area in the northeastern part of the Spruce Pine pegmatite district* on the Blue Ridge upland in western...Sorvey Professional Paper describing pegmatite* in the Blue Iddge Province* In 1948, the general geologic Mapping...* which nake up the "rcetamorphie and plutonic province" (fig. 2). In North Carolina this belt is at...Blue lidge physiographic province and in the Piedmont physiographic province as far as the western margin |  | | Journal (issue) | | Rhodochrosite on Manganite N'Chwaning Mine, Northern Cape Province, South Africa. 8.7 cm In 1978 a historic discovery...exchange for some corals that he had brought from Italy, inspiring him to praise Binnyaran as “the most...of that year all of Burma became officially a province of India. Immediately following the annexation...25-carat round 30 brilliant which then went to an unnamed American buyer; its current whereabouts are unknown...pegmatites, most notably at the rich Sakhan-gyi pegmatite mines. Crossed-hammer symbols indicating important |  | | Journal (issue) | | their own right, like the Medici of Renais sance Italy, they know that an artist brings something special...Stan Tourmaline) into a general San Diego County pegmatite collectic of nearly 200 superb specimens. Fine...garnets stood side-by-side with rare and exotic pegmatite specie It was widely acclaimed as the finest such...Colombia; 2.75 inches. A q u a m a r in e ♦ 48 ♦ on albite crystals, from Shengus, near Skardu, Pakistan;... o r g a n it e beryl on feldspar from Yunan Province, China; 6.5 inches. ♦ 51 ♦ A q u a m a r in |  | | Report (issue) | | Pegmatite Investigations 1942-1945 Black Hills, South Dakota By LINCOLN R. PAGE and OTHERS GEOLOGICAL...pocket] PLATE 1. Index map showing locations of pegmatite mines and prospects. 2. 3. 4. 5. 6. 7. 8. 9....Dakota. Geologic map and sections Beecher Lode pegmatite, Ouster County, South Dakota. Geologic map and...Geologic map and sections,' Elkhorn and Hot Shot pegmatite mines, Custer County, South Dakota. Geology of...of U. S. Bureau of Mines sample cuts, Elkhorn pegmatite, Custer County, South Dakota. Geologic map and |
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