 | | Journal (article/letter/editorial) | | Mines and Minerals of the California Pegmatite Province Downloaded by [Pennsylvania State University]...of the past century, the Southern California pegmatite province has been the source of some of the world’s...specimens of morganite, aquamarine, topaz, and spessartine, and they were the first recognized occurrence...(bottom left page). Map of the Southern California pegmatite province, including location of major specimen-producing...Geology and Geography The Southern California pegmatite province is a mountainous, semiarid region located |  | | Report (issue) | | Addresses Right: Aquamarine Rough from Marijao, Madagascar is sorted in a workshop in Idar-Oberstein, Germany...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...Assun�io, Portugal. Pegmatites at Mahajamba, Madagascar have yielded beryl crystals to lengths of 3 meters |  | | Journal (article/letter/editorial) | | and axinite from three pegmatite dikes (named Main, US Swamp, and Spessartine) at the Little Three mine...thinner Spessartine and Swamp ED dikes, the pocket mineralogy includes foitite, spessartine, muscovite...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 |  | 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...Three mine are located within the Ramona pegmatite district, ~7.5 km east of Ramona, San Diego County...workings are designated as the Main dike, the Spessartine dike, and the Swamp dike (Table 1). The Main...Main dike contains the thickest section of pegmatite, 1026 the canadian mineralogist up to ~2.5 meters |  | | Journal (article/letter/editorial) | | and photo. (b) Beryl variety aquamarine with spessartine on albite and muscovite, 11.5 × 11.0 × 7.0 cm...photo. (h) Etched beryl variety aquamarine, with spessartine, muscovite, and feldspar, 9.9 × 5.5 × 5.1 cm...textural, and mineralogical attributes of a layered pegmatite dike from near Palomar Mountain, San Diego County...in composition, and for convenience, the term pegmatite will refer to those of granitic composition in...cavity (Silver Dollar Pocket) exposed at the Havey pegmatite, Maine, in October 2013; photo courtesy of Jeff |  | | 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 |  | | Journal (issue) | | but Espenshade (1954) identifies it as a short unnamed inclined adit accompanied by a small dump about...James RiverRoanoke River manganese and iron mining district. Mining for iron ore began during the Revolutionary...turquoise were reported (Sterrett, 1910). The district was explored for manganese ores by the Otter River...portion of the James River–Roanoke River manganese district, west of Lynch Station (after Espenshade, 1954)...deposits of the James River-Roanoke River manganese district. U.S.Geological Survey Bulletin 1008,134–135. |  | | Book | | Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...of rutile (Weerth, 2004). Tonniq Valley, Skardu district, Gilgit-Baltistan [Northern Areas]. Beginning...testing to be hematite. Zagi [Zegi] Mountain, Warsak district, North West Frontier Province. Surface diggings...to 6 cm (2005: 120). Los Remedios mine, Taxco district, Taxco, Guerrero. Ilvaite occurs in the wallrock...manto deposits of polymetallic ores in the Taxco district, commonly as compact aggregates of crystals overgrown |  | | Journal (issue) | | SEPTEMBER–OCTOBER 2019 Articles The Golconda District, Minas Gerais, Brazil ..........................volume 50, September–October, 2019 The Golconda District Minas Gerais, Brazil Carlos Cornejo1 Andrea Bartorelli2...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 |  | | Journal (article/letter/editorial) | | beryllium and the crustal Be cycle from migmatite to pegmatite JOSEPH M. EVENSEN*†and DAVID LONDON School of...the final stages of the petrogenesis of granite–pegmatite systems. In combination with reported data on...Gotthardt, Switzerland; orthoclase, Betroka, Madagascar; quartz, ultrahigh purity, Feldspar Corp., Spruce...(Table 1), although the database is skewed toward pegmatite samples that contain abnormally high contents...illustrates the distribution of Be in a schematic pegmatite dike initially Mineral/melt partitioning and |  | | Book | | Strontian crandallite from the Alto Benedeto pegmatite, Parai'ba, Brazil (by J.P. Cassedanne & L. Barreto)...21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil 25:165-170 9 AUTHOR/TITLE...23:228 Al 'JAJ\ABO~OINA The Anjanabonoina pegmatite. Madagascar (by W. E. Wilson) 20:191-200 A.'\ :E.!\1ARTINL...Rybicki) 7:72-77 Chalcanthite from the Helvetia district, Arizona (by G. Robinson) 9:252 Cuprite [from...Arizona (by W. A. Thompson) 11:248-250 The Tombstone district, Cochise County, Arizona (by S. A. Williams) 11:251-257 |  | | Journal (issue) | | Mogok belongs to Mogok Township, in Pyin-U-Lwin District, in Mandalay Division, which borders Sagaing Division...January–February, 2022 Figure 3. The Ruby Mining District in Burma around Mogok, as surveyed by R. Gordon...exchange for exclusive gem-mining rights in the district. Agreeing, the king made U Tha Doon “sole governor”...depopulated mining district, and the smuggling of gems entirely out of the district became an industry...off complete anarchy, King Mindon decreed the district free and open to all for mining and trading. Additionally |  | | 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...case of the island of Laven in the Langesundfjord District of Norway. Interestingly, and in contrast to its...and partially studied and unnamed (UK) minerals. For the unresolved unnamed minerals, all available technical |  | | Book (volume) | | California, is arguably the most important gem-pegmatite district in North America. Its wealth of tourmalines...qualify as world's best and superior to any from Madagascar, Afghanistan, Russia, or Brazil. Certainly, only...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 |  | | Journal (issue) | | Golden Topaz, 3.5 inches, from Katlang, Mardan District, Pakistan; Freilich Collection. OPENING SPREAD:...Freilich C ollection (clockwise fro m upper left): Spessartine from Pakistan; wulfenite from the San Francisco...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...Petalite, Afghanistan 63 Tsavorite, Tanzania 63 Spessartine, Nigeria 63 Titanite, Pakistan 64 Forsterite |  | | 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 (issue) | | what was previously known as the Saint-Michel district, and is now part of the Arrondissement de Vil...quarry should read Francon quarry, Saint-Michel district, Montréal, Québec, Canada. In some publica- 1...described as a new species from the Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland...related to mckelveyite-(Y), ewaldite, and the two unnamed carbonates UK33A and UK37A from Mont Saint-Hilaire...Francon quarry. The other is in a nepheline syenite pegmatite in the Poudrette quarry at Mont Saint-Hilaire |
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