| Loun, Jan, Novák, Milan, Cempírek, Jan, Škoda, Radek, Vašinová Galiová, Michaela, Prokeš, Lubomír, Dosbaba, Marek, Čopjaková, Renata (2018) Geochemistry and secondary alterations of microlite from eluvial deposits in the Numbi mining area, South Kivu, Democratic Republic of the Congo. The Canadian Mineralogist, 56 (2) 203-220 doi:10.3749/canmin.1700091 | Journal (article/letter/editorial) | SECONDARY ALTERATIONS OF MICROLITE FROM ELUVIAL DEPOSITS IN THE NUMBI MINING AREA, SOUTH KIVU, DEMOCRATIC REPUBLIC...37 Brno, Czech Republic ABSTRACT Microlite and U-enriched microlite were found in eluvium close to highly...~1000–900 Ma old Kibara belt unit, Numbi mining area, South Kivu province of the Democratic Republic...cassiterite . microlite-group minerals (microlite þ U-enriched microlite) . columbite-group minerals (columbite–tantalite)...Misumari II pegmatite (berylcolumbite subtype) microlite . cassiterite, columbite–tantalite þ wodginite–ferrowodginite | | | Book | Jewelry, 146 Breastplate of the High Priest, 144 South America, Beryl in the Bible, 80 Emerald and 140...Emeralds and Beryls as 157 Beryl Structure, Space Group and Symmetry Elements, Talismans, 95 159 Emeralds...Derivations of Names and Portugal, 490 Republic of South Africa, Romania, 549 601 Yugoslavia, 485 Pakistan...Spain, 445 Greenland, India, 500 Republic, South West Africa 445 Ghana, Inner Somali 443 Germany... semi-precious in beryl history of gemstone mining the on papers in of knowledge the many | | | 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) . . . | | | Journal (article/letter/editorial) | resulted in increased ¯uorine activity (as seen in microlite compositions) and that in situ fractionation of...gleichbleibendem Mn. Introduction Columbite-tantalite group minerals are ubiquitous in beryl-, complex-, albitespodumene-...(CÏerny et al., 1985). The columbite-tantalite group minerals are therefore important in deciphering...of columbite-tantalite group minerals from the Separation Rapids pegmatite group in N.W. Ontario ± a suite...Geological setting The Separation Rapids pegmatite group and the pluton with which it is associated lie almost | | | 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 | | | 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 | | 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 | | Černý, P., Teertstra, D. K., Chapman, R., Selway, J. B., Hawthorne, F. C., Ferreira, K., Chackowsky, L. E., Wang, X.-J., Meintzer, R. E. (2012) Extreme fractionation and deformation of the leucogranite-pegmatite suite at Red Cross Lake, Manitoba, Canada. IV. Mineralogy. The Canadian Mineralogist, 50 (6) 1839-1875 doi:10.3749/canmin.50.6.1839 | Journal (article/letter/editorial) | pegmatite, K–Rb feldspars, K–Rb–Cs micas, garnet group, tourmaline supergroup, pollucite, tantalite-(Mn)...analcime–pollucite), Uher & Černý (1998, zircon group), Smeds et al. (1998, lithiophilite, apatite, amblygonite...and 9.0 for phlogopite). Compositions of the microlite-group minerals are all recast into atomic contents...evolutionary trends, each mineral species, series or group is dealt with under a single heading for phases...95–12.07 wt.% Al2O3, and 0.20–0.34 wt.% F. Garnet group Internal garnet is scattered throughout the CGR | | | Journal (volume) | Australia: (03) 9872 4000 New Zealand: (09) 308 2871 South Africa: (011) 265 4304 • Or visit the De Agostini...Australia: (03) 9872 4000 New Zealand: (09) 308 2871 South Africa: (011) 265 4304 What are minerals? 1 Glossary...Earth, Editorial and Design by T he Brown Reference Group pie ISBN O 7489 7935 2 NO i 07 04 18 Printed in...Mexico. Eight-sided crystals from the Traversella mine, Piedmont, Italy. .&. crystals. It can also be...are often replaced by pyrite. FACT FILE PYRITE Group: Sulphides Crystal system: Cubic Habit: Cubes, |
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Tin Mountain Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA