 | | Journal (issue) | | image: Miners at the Pala Chief Mine, San Diego Country, California, circa 1903. On the back of the original...from the Oceanview Mine in Southern California; the 0.72-ct benitoite (left California Gems – More Than...Dallas Gem Mine area, San America’s Royal Gems – Montana and Yogo Sapphires Benito County, California; the...the group of sapGems Found in the U.S. State of Maine phires is from the Gem Mountain Mine, GranTantalizing...Rare and Beautiful American Gemstone and original mine image by Mark Mauthner. Red Beryl – A Very Rare |  | | Journal (issue) | | gressman@minrec.org Articles The Malkhan Pegmatite District Krasny Chikoy, Transbaikalia, Eastern Siberian...the Forgotten Pocket, Sosedka pegmatite, Malkhan district. The same specimen as shown from a different angle...or $225/three years Subscription (outside the U.S.): $89/one year, $178/two years, or $267/three years... $216/two years, or $324/three years, (Canada) $186/one year, (outside USA other than Canada) $265 for...you to become a Fellow and join this important group. Wear the medallion with pride! Contact Tom Gressman |  | Müller, Axel, Spratt, John, Thomas, Rainer, Williamson, Ben J., Seltmann, Reimar (2018) Alkali-F-Rich Albite Zones in Evolved NYF Pegmatites: The Product of Melt–melt Immiscibility. The Canadian Mineralogist, 56 (4) 657-687 doi:10.3749/canmin.1700087 | Journal (article/letter/editorial) | | (‘‘cleavelandite’’, white and pink mica, spessartine, columbite-group minerals, topaz, and fluorite) indicate that the...‘‘cleavelandite’’, white and pink mica, spessartine, columbite-group minerals (CGM), topaz, and fluorite, have been determined...and mica between 1884 and the 1970’s. Small-scale mining of high-quality feldspar continues to this day...cavity quartz, and accessory columbite and microlite group minerals, tourmaline, monazite(Ce), zircon...anhedral masses up to 10 cm in size. Columbite-group minerals are common in albite zones with crystal |  | | Book | | nearly all metals and the inevitable closing of many mining operations, it is a matter of the industry's survival...decision, not only is a handy volume affered to the mining and processing community but also duplication of...(with 21 Figures) . . . . . . 3 27 Pyrochlore Group Minerals from the Qaqarssuk Carbonatite Complex...Bastnaesite-Fluorite-Barite Deposit of the Kizilcaören District, Eskisehir, Turkey. G. Morteani and M. Satir (with...Granite-Hosted Tantalum Deposits: An Approach via District Analysis. P. 1. Pollard (with 1 Figure) . . . |  | Küster, Dirk, Romer, Rolf L., Tolessa, Dandena, Zerihun, Desta, Bheemalingeswara, K., Melcher, Frank, Oberthür, Thomas (2009) The Kenticha rare-element pegmatite, Ethiopia: internal differentiation, U–Pb age and Ta mineralization. Mineralium Deposita, 44 (7) 723-750 doi:10.1007/s00126-009-0240-8 | Journal (article/letter/editorial) | | amounts of other, less common Ta oxides (e.g., microlite, ixiolite, wodginite). The ore concentrates typically...represents a globally important tantalum source. The mine produces around 120 t tantalum concentrate (~55%...worked since the early 1990s. Up to now, tantalite mining has focused on the deeply weathered pegmatite regolith...potential is unknown. Ongoing exploration by the mining company (Ethiopian Mineral Development Share Company)...remote location and short mining history, the Kenticha pegmatite has had little scientific study (Zerihun |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...historian-collector William J. Brunet set out to trace three ilmenite occurrences mentioned in late 19th-century...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described |  | Dittrich, Thomas, Seifert, Thomas, Schulz, Bernhard, Hagemann, Steffen, Gerdes, Axel, Pfänder, Jörg (2019) Archean Rare-Metal Pegmatites in Zimbabwe and Western Australia - Geology and Metallogeny of Pollucite Mineralisations. Springer International Publishing. doi:10.1007/978-3-030-10943-1 | Book | | S. Geological Survey (Emeritus), Farmington, ME, USA The SpringerBriefs in World Mineral Deposits book...focused on a single mineral deposit or a limited group of deposits (sub-regional level), with regard to...limited. Cs resources can be categorised into one group of potassium salts, sedimentary rocks and seawater...resource group of commercial importance is LCT pegmatites that contain the rare zeolite group cesium mineral...Neo-Archean ages at *2625 Ma. A closure of the Tanco Mine for safety reasons and an imminent depletion of |  | | Thesis/Dissertation | | the Kragerø pegmatite field - Bamble pegmatite district.................. 41 Lindvikskollen pegmatite...Ramfoss pegmatite of the Kongsberg-Modum pegmatite district ................................................Spro pegmatite of the Østfold-Halland pegmatite district. ...............................................intermediate zone exposed in the wall of the eastern mine. ......................... 66 Figure 8-4 - Lithologies...et al., 2013). 5 Tourmaline from the Little Three pegmatites, USA (Maner & London, 2017). 6 Seawater (Foster |  | | Book | | Emeralds and Beryls as 157 Beryl Structure, Space Group and Symmetry Elements, Talismans, 95 159 Emeralds...(and scientific) Part 111 surveys the the last three centuries, whereas the fund of cultural the present...intertwined with that of mankind. John Sinkankas San Diego, California October, XIV 1981 ACKNOWLEDGMENTS... searches were encouraged University of California, important no and facilitated Scripps Institution...those years by Dr. a of persons and San by the main Diego library. The in many the text and |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...on p. 327 COVER: BARITE, 17 cm, from the Miekle mine, Nevada. (See the article in the previous issue...and then a year in Calcutta where he secured a three-week leave to trek to the sapphire mines of Kashmir...to study mineralogy because engineering offered little opportunity to work as a geologist. He enrolled...rediscovered the Moctezuma mine that was first opened for gold in 1937. This mine, though small, provided |  | | Book (volume) | | been an indefatigable researcher and collector of mining history. Among his specialties may be mentioned...fate of the Sterling mine in Ogdensburg, New Jersey, and his intense interest in mining history led him to...to purchase the mine in order to form a living museum so that it would remain accessible to the mineralogical...mineralogical community. Through his efforts, the Sterling mine has been declared a national historic landmark....a story to tell concerning Maine's minerals and mining history. The ranks of invited contributors have |  | | Book (volume) | | spectroscopy. Several examples are given below. Eudialyte-group minerals are trigonal zirconoand titanosilicates...threefold symmetry. CO32 -dominant minerals of this group with different occupation of N-sites, mogovidite...from 1,350 to 1,550 cm1 (Fig. 1.1). A cancrinite-group mineral kyanoxalite, Na7(Al6–5Si6–7O24)(C2O4)0.5–1·5H2O... Fig. 1.1 IR spectra of high-calcium eudialyte-group minerals from alkaline pegmatites of the Kovdor...first ammonium arsenate mineral of the autunite group uramarsite discovered in the Bota-Burum U deposit |
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