 | | Journal (article/letter/editorial) | | Beryllium is a quintessential upper crustal element, being enriched in the upper crust by a factor of 30...little or no increase in diversity. Nonetheless, a closer examination of the record suggests that at...and eventually levels off at ~35 species formed in a given 50 Ma time interval between 1125 and 475 Ma...deposits in the Bergslagen ore region of central Sweden, and which are inferred to correspond to the collisional...of the increase in the number of species formed in a given 50 Ma time interval, whereas the drop off at |  | | Journal (article/letter/editorial) | | held on 12 April 2019. Abstracts were reviewed by a committee consisting of Dr. Steven Chamberlain, New...follow. A NEW LOCALITY FOR PHENAKITE AND CASSITERITE IN MARATHON COUNTY, WISCONSIN. T. W. Buchholz1, A. U...500, 99 Main St., Bethel, ME 04217. A new site producing phenakite has been discovered in the Wausau Syenite...Complex, Marathon County, Wisconsin. The site is located in the Nine Mile pluton, a locality that has...has previously produced fine phenakite crystals that were found dominantly in the northern part of the pluton |  | | Journal (article/letter/editorial) | | Colorado 80210 markivanjacobson@gmail.com No pegmatite mineral collection is complete without octahe-...Fluorite is almost always a late-stage mineral in pegmatite cavities, forming a colorful, attractive icing...enhanced by a purple or green cube of fluorite hanging from a crystal face or nestled on a crystal druse...Conway, Carroll County, New Hampshire. Henry Minot specimen and photo. Mark Ivan Jacobson is a mineralogist-geologist...mineralogist-geologist by training, with a long-term specialty in collecting pegmatite minerals. He currently works |  | | Journal (article/letter/editorial) | | Researchers have subdivided that 570 million years into a dozen time periods, extending from the Cambrian to...To put Precambrian time into perspective, imagine a 6-inchthick, 4,600-page book with 11 x 8.5-inch pages...submicroscopic, and the story would be illegible except under a scanning electron microscope. Contrast this with the...dcvcloped during a collisioii bctwcen, and subsequent joining togelher of, the two provinces. A northeasterly-trending...Range sediments are believed to have accumulated to a thickness of several tens of thousands of feet (Peterman |  | | Journal (issue) | | .................................... 207 By Roy A . Redfield ............................................................................. 213 R. & M. A. HONOR ROLL ........................................are desired. Subscription price S2.00 a yeu ; Cur~t oumbtts, 25c a copy. No ttSJ)Onsibilitv is assumed... S. A. The official Journal of the Rocks and Minerals Association 194 ROCKS AND MINERALS A WELL-BALANCED...Mr. Wm. C. Chandler, of San Jose, Calif., offered a suggestion for increasing the subscription list of |  | | Book | | and structure and sis; for respected readable a and on every history; and synthe- including...facet and widely a Emerald historians, gemological Sinkankas, the permanent a reference of portrait...techno- fora mineral only for and literature of A the Era, highly culled synthe- every volume...sized in this to Middle was ornament, unique a history of antiquity, pink blue aquamarine. compelling...dazzling Coronation jewels—and relatives, beryl is a of the ago, the fabled Table golden beryl medicine |  | | Journal (article/letter/editorial) | | P ennsylvania. Arsrnact A bluish beryl from a pegmatite dike in Mohave County, Arizona, difiers distinctly...in Li, and its Be content is abnormally high for a high-index, high-alkali beryl. These relationships...an irregular pegmatite dike, where it typically forms small podlike masses. Each massis a single skeletal...seems to be a direct reflection of a reiativeiy high iron and magnesium content of the pegmatite fluid during...effort to define and attack this broad problem in a quantitative manner, Schaller and Stevens(report in |  | | Thesis/Dissertation | | Geosciences Mineralogy and petrology of the amazonite pegmatite at Bakstevalåsen, øvre Eiker Øyvind Sunde Mineralogy... Mineralogy and petrology of the amazonite pegmatite at Bakstevalåsen, øvre Eiker Øyvind Sunde Master...Hand specimen of the amazonite pegmatite at Bakstevalåsen measuring a 15 cm cross-section with amazonite... Acknowledgements This thesis marks the end of a 5 –year period of time with relentless studies at...sail onto this journey. You all know who you are and a huge thank you! My thesis would not have been possible |  | | Report (issue) | | Tamagnini Page 40 Emerald and Aquamarine in Canada Lee A. Groat Page 22 Beryl Color Varieties William "Skip"...Friedrich August Breithaupt had his seal carved into a beryl crystal. Breithaupt began his studies in 1811...publications, including 46 first descriptions. T he above is a postcard of the School of Mining in Feiberg, Saxony...Aquamarine Rough from Marijao, Madagascar is sorted in a workshop in Idar-Oberstein, Germany. P hoto Eckehard...William "Skip" Simmons and Alexander Falster, pegmatite specialists from the University of New Orleans |  | | Book (edition) | | Jensen. AND MINERAL GUID E RICHARD M . PEARL A COMPLETE GUIDE - \i\/ITH MAPS, MILEAGE L OGS. REVISED...and many sketch maps made especia!Jy for this hook. A unique system arranges the localities along segments...Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery Waterfalls:...Montrose County Colorado National Monument Mesa County Dinosaur National Monument Moffat County Florissant...Florissant Fossil Beds National Monument Teller County Great Sand Dunes National Monument Saguache and |  | | Book (edition) | | 9 t I I: ; : ■ I » 8 ■ t a — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY...Wonders of Rocks and Minerals Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide...Colorado National Monument Mesa County Dinosaur National Monument Moffat County Great Sand Dunes National... Montezuma County NATIONAL PARKS IN COLORADO Mesa Verde National Park Montezuma County Rocky Mountain...publications devoted to mineral and gem collecting on a popular level. They report new finds and new facts |  | | Journal (article/letter/editorial) | | 12:55 01 January 2015 RM ram rog Sp n ns o obi nR a s y Su er b cov Rochester Mineralogical Symposium...THE NINE MILE PLUTON, MARATHON COUNTY, WISCONSIN. T. W. Buchholz1, A. U. Falster2, and W. B. Simmons2...the Wausau Complex. A limited amount of an alteration assemblage associated with a thin quartz-pyrite-fluorite...quartz-pyrite-fluorite vein was recovered from a pile of shot rock derived from blasting large boulders removed from...portion of the operation. The vein was emplaced in a fracture cutting the granite, and it appears fluids |  | | Journal (article/letter/editorial) | | and Packers football, Wisconsin also has a diverse geology and a history rich in mineral production. This...mining in its southwest comer, a heritage preserved by the figure of a miner on its state seal. Its mineral...respect, Wisconsin represents a frontier state for the mineral collector. A renaissance in the study of...Racine (Scovil 1994), the pegmatites of Florence County (Koehier 1989) and the Wausau area (Falster 1987)...points the way to new G T Dr William S. Cordua is a professor of geology at the University of Wisconsin-River |  | | Journal (article/letter/editorial) | | Silver, Wolverine mine, Kearsarge lode, Keweenaw County, Michigan. William Severance specimen, Jeff Scovil...(Hallelujah Junction), Petersen Mountain, Washoe County, Nevada. Paul Geffner specimen, Jeff Scovil photo...November/December: Millerite, Sterling mine, Antwerp, Jefferson County, New York. National Museum of Natural History (Smithsonian...(Smithsonian Institution) specimen, Chip Clark photo. A Academy of Natural Sciences, Philadelphia, 347 Agate...Australia, I. T. Graham, R. E. Pogson, 29–38 Albini, A., see In Memoriam Albite, Maine, 11; Michigan, 288 |  | | Journal (article/letter/editorial) | | PEGMATITE MINERALS OF THE UNITED STATES David M. Seaman American Museum of Natural History, New York...Silicates (part two) GARNET GROUP The garnets form a group of closely related mineral species; all crystallizing...whereas the almandite-spessartites found in granite pegmatite are predominently trapezohedral crystals or else...larger crystals have been found in the pegmatites. A large, nine pound, six ounce trapezohedral crystal...even larger crystal nearly nine inches in diameter, a combination of dodecahedron and trapezohedron, is |  | Novák, Milan, Cícha, Jaroslav, Čopjaková, Renata, Škoda, Radek, Vašinová Galiová, Michaela (2017) Milarite-group minerals from the NYF pegmatite Velká skála, Písek district, Czech Republic: sole carriers of Be from the magmatic to hydrothermal stage. European Journal of Mineralogy, 29 (4) 755-766 doi:10.1127/ejm/2017/0029-2652 | Journal (article/letter/editorial) | | Zdeněk Johan Milarite-group minerals from the NYF pegmatite Velká skála, Písek district, Czech Republic: sole...milarite-group minerals were distinguished in the NYF pegmatite Velká skála, Písek district, Czech Republic (Moldanubian...simply zoned (Kfs,Plg,Ab,Qz > Bt > Ap > Tur) pegmatite dike, ∼60 cm thick, is enclosed in durbachite...Milaritegroup minerals are the sole carriers of Be in the pegmatite, no relics or pseudomorphs after other Be-rich...host durbachite suggest a NYF affinity of the Velká skála pegmatite as well as a close relation to euxenite-type |  | | Journal (article/letter/editorial) | | held on 20 April 2018. Abstracts were reviewed by a committee consisting of Dr. Steven Chamberlain, New...follow. A REDISCOVERED PEGMATITE IN THE STETTIN COMPLEX, WAUSAU SYENITE COMPLEX, MARATHON COUNTY, WISCONSIN...WISCONSIN. T. W. Buchholz1, A. U. Falster2, and W. B. Simmons2. 11140 12th St. N., Wisconsin Rapids, WI 54494;...intrusion have exposed a relatively large aplite/pegmatite dike. This dike may be a pegmatite originally reported...lower intermediate zones of aplite and pegmatite bands, and a coarse pegmatitic core zone. 184 ROCKS |  | | Journal (issue) | | to generate a common publishing channel Of all scientific meetings held in Norway with a geological content...in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………...paleoclimate controls of lithium-cesium-tantalum (LCT) pegmatite genesis, exhumation, and preservation……………………...mineralization in a rediscovered pegmatite in the Stettin Complex, Wausau Syenite Compley, Marathon County, Wisconsin...DOLGOPOLOVA, A., SELTMANN, R., STANLEY, C., ARMSTRONG, R., NORONHA, F., RAMOS, V., GUEDES, A., SIMONS, B |  | | Journal (issue) | | Geology of the Highland Border iiea.r Callander, by A. L. Harris, B.&:., Ph.D. · . . .. . II.-Rhaeto-Ll...region, by l, H . Forsyth, B;Sc., and W. A. Read, B.Sc. lV.- A revision of the Scottish Carboniferous lamel\ibranch...Rhys; B.S.c .', .and E. G . Smith, B.Sc. . Appendix A: Petrography of the Fallgate and Milltown Quarry boreholes...in the. boreholes, by W. Bullerwell, B.Sc;, Ph.D,, A..Inst.P. · BULLETIN No. 20. Published August, 1963...-The Strontian Granite Complex, Argyllshire, by P. A. Sabine, Ph.D., A.R.C.S. III.-The Geological Survey |  | | Journal (article/letter/editorial) | | II, BAZZITE, BAVENITE) FROM EUXENITE-TYPE NYF PEGMATITE RELATED TO THE OROGENIC ULTRAPOTASSIC TŘEBÍČ...Abstract An intragranitic, euxenite-type NYF pegmatite, Kožichovice II, derived from the ultrapotassic...modified CH□ 2OR3+ = CH(Ca,Fe2+) 2OR2+] were revealed. A sum of Na + K + Rb + Cs > 0.5 apfu found in bazzite...environments rather than to NYF pegmatites, and support a rather unique bulk-composition and compositional evolution...common bavenite and elevated Ca in bazzite, suggest a high activity of Ca in the late fluids, which is perhaps |  | Rao, Can, Wang, Ru-Cheng, Hatert, Frédéric, Wu, Run-Qiu, Wang, Qi (2020) Mineralogy and Geochemistry of Sr-Bearing Phosphates from the Nanping No. 31 Pegmatite (SE China): Implications for Sr Circulation and Post-Magmatic Processes in Granitic Systems. Minerals, 10 (6) 541 doi:10.3390/min10060541 | Journal (article/letter/editorial) | | Sr-Bearing Phosphates from the Nanping No. 31 Pegmatite (SE China): Implications for Sr Circulation and...Sr-bearing phosphates from the Nanping No. 31 pegmatite in Southeastern China, helping to characterize...recirculations of Sr are proposed in the Nanping No. 31 pegmatite: (1) breakdown of the “primary Sr mineral” (K-feldspar...emplacement and consolidation processes of the Nanping pegmatite involved the participation of externally derived...minerals; Sr isotope; granitic systems; Nanping pegmatite 1. Introduction Strontium is one of lithophile |  | Novák, Milan, Cempírek, Jan, Gadas, Petr, Škoda, Radek, Vašinová Galiová, Michaela, Pezzotta, Federico, Groat, Lee A. (2015) Boralsilite and Li, Be-bearing "Boron Mullite" Al8B2Si2O19, Breakdown products of spodumene from the Manjaka pegmatite, Sahatany valley, Madagascar. The Canadian Mineralogist, 53 (2) 357-374 doi:10.3749/canmin.1400092 | Journal (article/letter/editorial) | | BREAKDOWN PRODUCTS OF SPODUMENE FROM THE MANJAKA PEGMATITE, SAHATANY VALLEY, MADAGASCAR MILAN NOVÁK§ Department...Naturale, Corso Venezia 55, I-20121 Milan, Italy LEE A. GROAT Department of Earth, Ocean and Atmospheric...elbaite-subtype Manjaka granitic pegmatite, Sahatany Valley, Madagascar. The pegmatite mineral assemblage is relatively...> Ap + several accessory B-rich phases). This pegmatite forms an E–W-trending elongated body emplaced...emplaced in an Mg-rich calc-silicate rock; the pegmatite exocontact locally contains thin reaction zones (Tur+Phl±Brl) |  | | Report (issue) | | pear-shape weighs 3.63 carats. A matched pair of cushion cut stones (weighing a total of 2.52 carats) from...adorn the upper wings, with a matched pair of pink Russian topazes, weighing a total of 3.03 carats on the...Lyckberg, Mike Menzies Alfredo Petrov, V ladimir A. Popov, Valentina I. Popova, John Rakovan, George...B. SIMMONS 10. TmtasLOU • T6:itasrn; • Topazius: A Story of Facts and Fiction H. ALBERT GILG 14. Geology...Topaz from Russia VALENTINA I. POPOVA & VLADIMIR A. POPOV 79. The Many Colors of Topaz GEORGE R. ROSSMAN |  | | Book (volume) | | Geological Survey DEPARTMENT OF CONSERVATION Walter A. Anderson, State Geologist 1 Volume 1: Descriptive...Resources Information, Maine Geological Survey Walter A. Anderson, State Geologist Maine Geological Survey...of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by...various capacities including president and director. As a scholar of mineralogy, he has been an indefatigable...history led him to purchase the mine in order to form a living museum so that it would remain accessible to |  | | Book (edition) | | CONNECTICUT To my uncle Doug, who never turned down a chance to head out to the field. An imprint of The...registered trademarks and Make Adventure Your Story is a trademark of The Rowman & Littlefield Publishing Group...by The Rowman & Littlefield Publishing Group, Inc. A previous edition of this book was published by Falcon...permission from the publisher, except by a reviewer who may quote passages in a review. British Library Cataloguing...Studies Where to Go About This Guide Hardness Be a Safe and Considerate Collector Artifacts Additional |
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