 | | 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) | | Hampton submitted several samples from an unnamed pegmatite feldspar mine in Middleton. Two of the specimens...abundant cookeite. Bertrandite The state of Maine is blessed with an abundance of bertrandite occurrences....both produced clusters Bertrandite, B.B. #7 quarry, Norway, Maine. of bertrandite up to 7 x 10 cm. The...quarry at Glendale has produced a large variety of pegmatite phosphate minerals. Among these is the species |  | | 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 (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...purple and pink fluorapatite, the world’s finest bertrandite crystals and most recently fine autunite crystals...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 |  | | 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 (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 |  | | 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 | | 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 |  | | 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 |  | | Journal (issue) | | Golden Topaz, 3.5 inches, from Katlang, Mardan District, Pakistan; Freilich Collection. OPENING SPREAD:...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...on matrix, from Ghundao Hill, Katlang, M ardan District, Pakistan; 3.15 inches. ♦ 61 ♦ T opaz with...rose-pink muscovite from Tchombarak Vil lage, Pech district, Kunnar in Nuristan, Afghanistan, in sheaves of |  | | 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) | | 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!” |
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