 | | 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 (article/letter/editorial) | | prehnite, pyrite, pyroaurite, pyrrhotite, quartz, schorl, shandite, sphalerite, thompsonite, vesuvianite...Hampton submitted several samples from an unnamed pegmatite feldspar mine in Middleton. Two of the specimens...produced clusters Bertrandite, B.B. #7 quarry, Norway, Maine. of bertrandite up to 7 x 10 cm. The largest...quarry at Glendale has produced a large variety of pegmatite phosphate minerals. Among these is the species |  | | 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...(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...Foord (1991) report age dates for the Himalaya pegmatite that place its formation within the time period |  | | 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 |  | | 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) | | specimen and photo. (c) Beryl variety morganite with “schorl” on albite, 16.8 × 16.0 × 14.3 cm, Urucum mine...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...Morris; (b) elbaite in a clay-packed pocket, Havey pegmatite, showing a portion of a silver dollar for scale; |  | | 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 |  | | Journal (issue) | | 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...of other pegmatite minerals. LOCATION AND ACCESS The Golconda District or Golconda Pegmatite Field, also |  | | Book (volume) | | California, is arguably the most important gem-pegmatite district in North America. Its wealth of tourmalines...Sciences Library, Boston, Massachusetts Norway Historical Society, Norway, Maine Herbert Obodda library, Short...University, Boston, Massachusetts Norway Historical Society, Norway, Maine Department of Mineralogy, University...Massachusetts Curt Segeler, Brooklyn, New York Ed Sessions, Norway, Maine Ben Shaub, Northampton, Massachusetts Mary...Falster, New Orleans, Louisiana Wayne Flanders, Norway, Maine Gene Foord, Denver, Colorado Charles Guidotti |  | | 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!” |  | | Book | | flattened rhombohedrons (resembling those of Froland, Norway) to 12 cm across, some individuals weighing up...northwest of the first, he collected good specimens of schorl and of ilmenite, the latter as unaltered and partially...richterite (Menezes and Martins, 1984). EUROPE NORWAY Omdal, Froland, Aus~Agder. Thick-tabular to equant...(Moore, 1991). Old labels often give "Arendal, Norway" as the locality for these ilmenite specimens,...rutile and iron oxides, and they are associated with schorl, quartz and cassiterite (Cairncross and Bahmann |  | 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 |  | | 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...island of Laven in the Langesundfjord District of Norway. Interestingly, and in contrast to its unusual...and partially studied and unnamed (UK) minerals. For the unresolved unnamed minerals, all available technical |  | | Journal (issue) | | but Espenshade (1954) identifies it as a short unnamed inclined adit accompanied by a small dump about...alaskite from Bolivia.] (1926) Zinnerzfuhrende Pegmatite in der Cordillera Real Boliviens. Metall und Erz...DIRECTORY Alpine Mineral Company Fine Alpine and Gem Pegmatite Minerals www.alpineminerals.com e-mail: kevin@alpineminerals...an unnamed prospect near Pisco; they resemble specimens from Pampa Blanca. Lustrous black schorl crystals...APPOINTMENT IN VIRGINIA, AND BY MAIL (NO LISTS) Pegmatite Minerals. lists issued C. CARTER RICH —FINE MINERALS— |  | | 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... Ullensvang Statsallmenning, Hordaland Fylke.] Norway (by W. L. Griffin. T. Garmo, H. Lovenskiold & A...23:209-225. 23:228 Al 'JAJ\ABO~OINA The Anjanabonoina pegmatite. Madagascar (by W. E. Wilson) 20:191-200 A.'\...Cassedanne: Strontion crandallite from the Aho Benedito pegmatite, Para!ba, Brazil 22:183-185 BARRINGERHILL Tveitite |  | | Journal (issue) | | 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...Thus syenite, granodiorite, leucogranite and pegmatite bodies entered the Mogok Metamorphic Belt system;...largely devoid of specimen interest. The granite pegmatite of the Sakhan-gyi mine and of the neighboring...quartz, feldspar species and many others. Small pegmatite dikes with typical 43 Figure 36. Map of the |  | | Journal (issue) | | Aquamarine from Pakistan; Wire Silver from Kongsberg, Norway; Powellite from Nasik, India; Blue Topaz from the...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...20 Gold, Australia 21 Silver, Norway 21 Silver, Germany 22 Silver, Norway 23 Silver, Kazakhstan 24 Bismuth...Brazil 57 Elbaite, Afghanistan 58 Elbaite, Burma 59 Schorl, Pakistan 59 Topaz, Pakistan 60 Topaz, Pakistan |  | | Journal (issue) | | Argentina has come up with a surprise: a granite pegmatite locality. Xavier du Gromont is the geologist working...February of 1997 from a hydrothermal vein in a pegmatite some 5 miles northeast of Lake George, in Teller...Carnegie M useum Show. Jeff Scovii photo. Figure 31. Schorl crystal group, 11.5 cm, from the Jaq u eto area...tourmaline-group mineral he was calling “dravite-schorl,” from a new find at Vargem Alegre, Espirito Santo...7 cm, and two other pieces have single dravite-schorl crystals sitting on prism faces of 8-cm milky quartz |  | | Report (issue) | | Helpful suggestions on field occurrences and pegmatite mineralogy were received horn Dr. James J. Norton...north side of the tunnel entrance to the Greene pegmatite three miles east-northeast of Pringle has been...southeast part of the Gayle (Dubuque)-Royal Flush pegmatite 5.9 miles southwest of Custer by Redden (5) p...schist exposed at the Beecher No. 3-Black Diamond pegmatite four and one-half miles south-southeast of Custer...(1) p 14, 15. 3. Found with sillimanite in a pegmatite vein, associated with quartz, albite, microcline |
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