 | Simmons, W. B., Pezzotta, F., Falster, A. U., Webber, K. L. (2001) Londonite, a new mineral species: the Cs-dominant analogue of rhodizite from the Antandrokomby granitic pegmatite, Madagascar. The Canadian Mineralogist, 39 (3) 747-755 doi:10.2113/gscanmin.39.3.747 | Journal (article/letter/editorial) | | RHODIZITE FROM THE ANTANDROKOMBY GRANITIC PEGMATITE, MADAGASCAR WILLIAM B. SIMMONS§ Department of Geology and...dike of granitic pegmatite in the Manandona valley, Antsirabe region, and at Ampanivana and Antsongombato...in the Betafo region south of Mahaiza, all in Madagascar. Londonite occurs in the inner zones and in miarolitic...in red tourmaline. Associated minerals include microcline, quartz, albite, tourmaline (elbaite – liddicoatite...rhodizite, Antandrokomby, Ampanivana, Antsongombato, Madagascar. SOMMAIRE La londonite, (Cs,K,Rb) Al4 Be4 (B |  | | Report (issue) | | 7.317–7.319 Z=1 X-ray Powder Pattern: Manjaka, Madagascar; very similar to londonite. 2.983 (100),...Total [101.0] [99.79] (1) Ambatofinandrahana, Madagascar; B2 O3 by ICP, SiO2 6.23% assumed as quartz;...(B11.35 Be0.55 )Σ=11.90 O28.00 . (2) Andasy, Madagascar; by electron microprobe, average of seven analyses...albite, microcline, quartz. Distribution: Found near Sarapulka and Shaitanka, Mursinka district, Ural...Ural Mountains, Russia. In Madagascar, from Antandrokomby, near Mt. Bity, at Andasy, Besesitra, and Ifsina |  | Ertl, Andreas, Tillmanns, Ekkehart, Ntaflos, Theodoros, Francis, Carl, Giester, Gerald, Körner, Wilfried, Hughes, John M., Lengauer, Christian, Prem, Markus (2008) Tetrahedrally coordinated boron in Al-rich tourmaline and its relationship to the pressure-temperature conditions of formation. European Journal of Mineralogy, 20 (5) 881-888 doi:10.1127/0935-1221/2008/0020-1869 | Journal (article/letter/editorial) | | tourmaline from the Sahatany Pegmatite Field at Manjaka, Sahatany Valley, Madagascar, was structurally...500–700 MPa/630 C. Key-words: Al-rich tourmaline, Manjaka, tetrahedrally coordinated boron, crystal structure...of [4]B from the Sahatany Pegma- tite Field, Madagascar. The pegmatite at Manjaka (west of the village...village Ihasy), Sahatany Valley, Betafo-Antsirabé region, Antananarivo Province, Madagascar, is located...located in the Sahatany Pegmatite Field. Gem tourmaline (elbaite) has been mined in this marble-hosted, complex |  | | Report (issue) | | The Natural History Museum of Milan and its Madagascar Collection The Museo Civico di Storia Naturale... the museum began paleontologic fieldwork in Madagascar (upper Permian fauna and Jurassic and Cretaceous...fieldwork in Madagascar in 1996 in collaboration with other institu tions in Madagascar, Italy, and the...Pezzotta has spent a total of twenty nine months in Madagascar making geological-mineralogical surveys. In collaboration...both classic and new minerals and gemstones from Madagascar opened at the Natural History Museum in Milan |  | | Report (issue) | | 3205(3) Z=1 X-ray Powder Pattern: Antandrokomby, Madagascar (very similar to rhodizite). 2.9898 (100), 2...10 0.53 [100.07] [99.91] (1) Antandrokomby, Madagascar; by electron microprobe, average of five analyses...(B10.99 Si0.01 Be1.00 )Σ=12.00 O28.00 . (2) Manjaka, Madagascar; original total given as 99.92%, neglecting...béhierite, hafnian zircon, albite, microcline, quartz. Distribution: In Madagascar, from Antandrokomby, near Mt...Mt. Bity, Manandona Valley, Antsirabe district; at Antsongombato and Ampanivana, south of Mahaiza, and |  | Pekov, I. V., Yakubovich, O. V., Massa, W., Chukanov, N. V., Kononkova, N. N., Agakhanov, A. A., Karpenko, V. Y. (2010) Londonite from the Urals, and new aspects of the crystal chemistry of the rhodozite-londonite series. The Canadian Mineralogist, 48 (2) 241-254 doi:10.3749/canmin.48.2.241 | Journal (article/letter/editorial) | | spectrum, granitic pegmatite, Urals, Russia, Madagascar. Sommaire Ce travail porte sur trois échantillons...infrarouge, pegmatite granitique, Ourales, Russie, Madagascar. Introduction Rhodizite and londonite are aluminum...years of 20th century, rhodizite was found in Madagascar, where it is a relatively common mineral of many...localities in Madagascar. Both K- and Cs-dominant samples have been found in Madagascar pegmatites. Until...three pegmatites located in different parts of Madagascar (Simmons et al. 2001). Thus, the precise chemical |  | | Journal (article/letter/editorial) | | Brightwell, 91A Dutchmill Ct., Harrisonburg, VA 22801. Microcline feldspar in pegmatites often displays a blue-green...only from the Sahatany Valley region in Madagascar. The principle occurrence is the Manjaka pegmatite, where...Animikie Red Ace pegmatite is very similar to that at Manjaka and suggests similar bulk chemistry of the pegmatitic...reported in the earlier analysis of behierite from Manjaka (Mrose and Rose 1962). SnO,, MnO, FeO, and Bi,O...Antandrokomby (35 kilometers south of Antsirabei, Madagascar) yielded a comparable composition with a slightly |  | | Journal (article/letter/editorial) | | elbaite. In addition, narrow veinlets composed of microcline, albite, axinite, prehnite, fluorite, and calcite...the principle potassium feldspar is commonly microcline. Of a large number of African lithium pegmatites...the exotic Manjaka rubellite-kunzite-rhodizite pegmatite in the Sahatany Valley of Madagascar. The K-feldspar...axinite-bearing veins, however, appears to be microcline. Chaudhry (1971) reports low obliquity values...with grey lithian mica and orthoclase, and with microcline- and green tourmaline-bearing veinlets. Both |  | | Book (volume) | | ÏLi CEOLC-I: Uoogl. Kerk», *ch( 1 7 ü - ’D-'ir .II. Lei.&n MliMilMIJJUll! LA 1)1! SUPPLEMENT...figurent pas dans ceux-ci. En ce qui concerne Madagascar, d’où documents nouveaux, offrant un intérêt...coloration brun rouge. GISEMENTS ET ASSOCIATIONS Madagascar. — J’ai donné le nom d’ampaugabéite [C. B. CXLIV...ANrHOPHYLLITE-GÉDRITE (ï. p. 035; 1 , T. VI, p. 784). — Madagascar. J’ai rencontré [B. S.M. XXXV. 97. 1912) un...micaschistes mont Bitv). IV, p. 787). — Madagascar. J’ai visité le gisement d’Ambatoarina, d’où |  | | Journal (article/letter/editorial) | | amazonitic K-feldspar, which is orthoclase rather than microcline, indicate that the pegmatitic assemblage lost...fluid it held before crossing into the field of microcline, at 450°C or so. As a result, the minerals of...effects (leading to the conversion of orthoclase to microcline and the “exsolution” of lead from the structure...massif, in pegmatite dikes exposed in the Cannobina Valley, for example (A. Guastoni, pers. commun., 2004)...change where the degree of metamictization is low), Valley (2003) found that one could expect a decodable |  | | Journal (article/letter/editorial) | | columbite is related to a particular pegmatite district, its paragenetic position, and the presence of...spessaritite) rock that replaces footwall parts of quartz-microcline cores. G (Mica Lode) 5.58, 5.66, and in the same...internal reflection indicates high Mn content. Petoco District, New Merico Ref.: Jahns, 1946 Deposits represented:...metallic species "Gangue"-quartz, plagioclase,microcline, etc. (Growth inclusions and replacement). b...stibiotantalite, tapiolite, samarskite (Petaca district, N. M.) and euxenite (Lyndoch, Ont., Virginia) |  | | Journal (issue) | | ened tabular hexagonal crystal from Ratnapura District, Sri Lanka. Photograph of sample R090019 reproduced...(rubellite) from Manjaka, Sahatany Pegma te Field, Antananarivo Province, Madagascar. Coin diameter is...reported previously, volcanic rocks in the Eifel district, Germany (e.g., Schminke 2007, Lengauer et al...rocks no younger than 1050 Ma (Chimwala, Chipata district, Zambia, de Roever and Vrána 1985; Johnson et...PAPINEAU, D. F., RALPH, J. P., SVERJENSKY, D. A., & VALLEY, J. W. (2011): Needs and opportuni es in mineral |  | | Book | | 80 Emerald and 140 Beryls, as Founda- Part II 86 87 Birthstones, Beryl in India, CHEMICAL AND... Japan, 462 Switzerland, 510 Tanzania 463 Madagascar (Malagasy Republic), Malawi Nepal, 482 513...of cultural the present work astrological Part II lesser extent, a of part to knowledge has been...derived from erald. 5 M. but C. . which to II in the searched the literature for references to...more km) from Coptos passed center for these district, correspond cites a King to the are to Bostock |  | | Book | | -~~1---------- 1960-2015 by Thom.as P. Moore Volume II I-Z Published by the Mineralogical Record, Inc....Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...consists of ilmenite. magnetite, anatase, biotite, microcline and minor fluorapatite (Robinson and Chamberlain...crystals of rutile (Weerth, 2004). Tonniq Valley, Skardu district, Gilgit-Baltistan [Northern Areas]. Beginning...region of Alpine-type clefts along the Torrniq Valley produced small numbers of ilmenite specimens reminiscent |  | | Journal (issue) | | mine in the Te6filo Otoni-Marambaia pegmatite district of Minas Gerais. As is common with most aquamarines...courtesy of David Wilber. pegmatite at Malakialina! Madagascar. The famous Harding pegmatite in New Mexico contains... Quartz Garnet Afghanislanlpakistan Brazil Madagascar Mozambique Namibia Soviet Union Ural Mountains...trace 99.86 Microcline Quartz Plagioclase Muscovite Biotite Minor phases Microcline Quartz Albite...Albite Muscovite Microcline Quartz Albite Muscovite Beryl Tourmaline Apatite Garnet Beryl Tourmaline Apatite |  | | Book | | Determinative—Handbooks, manuals, etc. I. Appiani, Roberto. II. Title. 549 /.I 22 QE367.2.G83 2005 Library and Archives...1-55407-056-2 1. Minerals. 2. Mineralogy. I. Appiani, Roberto II. Title. QE363.2.G8213 2005 549 C2004-907454-7 Published...Natural History Museum in Milan) and the Federico II Museum of the University of Naples. Some specimens...diopside from the Susa Valley, Piedmont, Italy Pages 8-9: Beryl from the Codera Valley, Lombardy, Italy Pages...Pages 50-51: Tetrahedrite and realgar from the Binn Valley, Switzerland Pages 70-71: Fluorite crystals from |  | | Book | | themselves in the minerals of a single mine or mineral district, one or several particular mineral species, microspecimens...Balmat, New York; and Howard Brown of Lucerne Valley, California. Emanuel Fritch of the Gemological...Pst Wap o. eu ete as : _—-". ee ; — Ba2= ii. CAxTY o ry p= =» = eg @y ete: > oh) LP...New England, as are blue- and red-fluorescing microcline and albite. Sometimes combination specimens are... At the Limecrest quarry at Sparta, there is microcline with a vivid violet-blue fluorescence. Fluorescent | | | Book | | Minerals—Collection and preservation. I. Title. 2. Fluorescence. II. Title: Gems and minerals under ultraviolet light...themselves in the minerals of a single mine or mineral district, one or several particular mineral species, microspecimens...of Balmat, New York; and Howard Brown of Lucerne Valley, California. Emanuel Fritch of the Gemological...New England, as are blue- and red-fluorescing microcline and albite. Sometimes combination specimens are... At the Limecrest quarry at Sparta, there is microcline with a vivid violet-blue fluorescence. Fluorescent |  | 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 | | . . . . . . . . . 2.3.2 The Wodgina Pegmatite District in the Pilbara Craton References . . . . . . ...subsequent cooling, the homogenous pollucite will exsolve (ii) into Cs, Al and Na, Si enriched components. This...and/or K entered the pegmatites. While stages (i) and (ii) are of magmatic origin, stages (iii) to (v) are...(Burundi); 22 Alto Ligonha (Mozambique); 23 Betafo (Madagascar); 24 Union; 25 Homestead (South Africa); 26 Rubicon...contents: (I) Lithium–Cesium–Tantalum (LCT) pegmatites; (II) Niobium–Yttrium–Fluorine (NYF) pegmatites and (III) |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31...e.g. on Grossgreiner Mt., overlooking Zillertal Valley, Tirol, Austria, and at Passo di Vizze, Trentino-Alto...western Sayan Mts., white at Burumskoye, Vitim River Valley, all Siberia, Russia. In many localities in New...Ambohitromby and Tongfeno, S of Betafo, both Madagascar. Tabular crystals to 1 cm in Alpine fissures |  | | Journal (article/letter/editorial) | | F. Chudoba, Hintze, Handb. Min., 1959, Erg.-Bd. II, p. 655 (Alumohaematit). An aluminian hematite in... F. Chudoba, 1959. Hintze, Handb. Min., Erg.-Bd. II, p. 658 (Ammonium-Aphthitalit). An unnecessary name...Survey of Argentina. [M.A. 14-343.] Aquacrepit, II, p. 659). error f o r Aquaereptit (Hintze, Handb... 21st List) (Hintze, Handb. Min., 1959, Erg.-Bd. II, p. 660). Arsenothorite. E. M. Bonshtedt-Kupletskaya...Arsenosulvanit (20th List) (Hintze, Handb. Min., Erg.-Bd. II, p. 660). Arsenuranocircite. H. Strunz, 1957. Min |  | | Book (edition) | | Mineralogy-Dictionaries. I. Rapp, George Robert, 1931joint author. II. Weber, Juµus, joint author. III. Title. 1 QE355...Data: Determinative Tables," Third Edition, Vol. II, by Donnay et al., American Crystallographic Association..."Elements of Optical Mineralogy," Fourth Edition, Part II, Descriptions of Minerals, by A. N. Winchell and...Strunz, 1957. "Mineralogy of Rare Elements," Volume II of Geochemistry and Mineralogy of Rare Elements and...Colorado at the Pelican Dives rnine , Silver Plun1e district, and at the Little Emma mine, Clear Creek County; |  | | Book (edition) | | cm. ISBN 0-442-27681-8 1. Mineralogy—Dictionaries. II. Rapp, George Robert, 1930QE355.R6 1990 549’ .03’21—dc19...Crystal Data: Determinative Tables, 3d. ed., Vol. II, by Donnay et al. (American Crystallographic Association...(Wiley-Interscience, 1964). Mineralogy of Rare Elements, Volume II of Geochemistry and Mineralogy of Rare Elements and...Colorado at the Pelican Dives mine, Silver Plume district, and at the Little Emma mine, Clear Creek County;...lode, Summit County, and in the Cripple Creek district. It is also found in Canada; Mexico; Bolivia; | | | Book (edition) | | Mineralogy-Dictionaries. l. Campbell, Thomas J. III. Title. II. Rapp, George Robert, 1930QE355.R6 1990 89-5633 549'...Crystal Data: Detern1inative Tables, 3d. ed., Vol. II , by Donnay et al. (American Crystall ographic Association...1956. Elen1ents of Optical Mineralogy, 4th ed., Part II , Descr;prions of 1\linerals, by A. N. Winchell and...Colorado at the Pelican Dives m.ine, Silver Plume district, and at the Little Emma mine, Clear Creek County;...lode, Summit County, and in the Cripple Creek district. It is also found in Canada; Mexico; Bolivia; |  | | Book | | Tantalum-Congresses. 3. Niobium-Congresses. I. Möller, P. (Peter) II. Cerny, P. III. Saupe, Francis. IV. Series: Special...with 8 Figures) . . . . . . . . . . . . . 80 Part II Geochemistry REE (Y), Nb, and Ta Enrichment in Pegmatitesand...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) . . .... In the Mineralogy of the Rare-Earth Elements II metamict silicate melanocerite (Ce,Ca)s(Si,B) 3 |
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