 | | Report (issue) | | Daoping mine, Guilin, Guangxi Zhuang Autonomous Region, China. These are loose, flowerlike, cyclic clusters...Daoping mine, Guilin, Guangxi Zhuang Autonomous Region, China. Weinrich Minerals specimen and photo. ...alluring items from new finds in Turkey, Peru and Morocco. Take those antique gray uglies first. From an...area, Denizovasi, Yahyali district, Kayseri Province, central Anatolia region, Turkey (got that?). According...area, Denizovasi, Yahyali district, Kayseri Province, central Anatolia region, Turkey. Fabre Minerals specimen |  | | Journal (article/letter/editorial) | | Co-rich chromian spinels from the Bou-Azzer mining district (Morocco): Constraints on their relationship...chromian spinel Arsenide ores UltramaïŹc-hosted hydrothermal vent Bou-Azzer mining district Morocco a b s...r a c t The CoâNi arsenides from the Bou-Azzer mining district contain disseminated chromian spinels...the role of Zn, Mn and Co contents in chromian spinel as possible indicators of mineralized environments...the chemical compositional variations of chromian spinel disseminated in barren serpentinite, in Co arsenide |  | Gervilla, F., Fanlo, I., Colas, V., Subias, I. (2012) MINERAL COMPOSITIONS AND PHASE RELATIONS OF Ni-Co-Fe ARSENIDE ORES FROM THE AGHBAR MINE, BOU AZZER, MOROCCO. The Canadian Mineralogist, 50 (2) 447-470 doi:10.3749/canmin.50.2.447 | Journal (article/letter/editorial) | | NiâCoâFe ARSENIDE ORES FROM THE AGHBAR MINE, BOU AZZER, MOROCCO Fernando GERVILLA§ Departamento de MineralogĂa...history of the CoâNi arsenide ores at Bou Azzer district, Morocco, (and by extension to the natural arsenides...mine, located in the western central area of the Bou Azzer inlier, displays noticeable mineralogical variations...the general sequence established for the Bou Azzer district, meaningful differences in mineral chronology...relations, vein ores, replacement textures, Bou Azzer district, Morocco. Introduction Arsenides and sulfarsenides |  | | Journal (article/letter/editorial) | | Paragenesis of the Co-Ni Arsenide Ores of Bou Azzer, Anti-Atlas, Morocco AHMED HASSAN AHMED,â ,* Department of...University, Agadir, Morocco Abstract The Co-Ni arsenide ore deposits at Bou Azzer, Morocco, represent an uncommon...mineralization. Several Co-Ni-As-Au-Ag mines are active in Bou Azzer and adjacent areas. The Co-Ni arsenide ores are...abundance, are the main sulfide minerals present in Bou Azzer ores. Gold-silver alloys, with about 15 wt percent...predominance of Co over Ni arsenide minerals in the Bou Azzer mineralization despite the high Ni/Co ratio of |  | Hodel, F., Macouin, M., Triantafyllou, A., Carlut, J., Berger, J., Rousse, S., Ennih, N., Trindade, R.I.F. (2017) Unusual massive magnetite veins and highly altered Cr-spinels as relics of a Cl-rich acidic hydrothermal event in Neoproterozoic serpentinites (Bou Azzer ophiolite, Anti-Atlas, Morocco) Precambrian Research, 300. 151-167 doi:10.1016/j.precamres.2017.08.005 | Journal (article/letter/editorial) | | Neoproterozoic serpentinites (Bou Azzer ophiolite, Anti-Atlas, Morocco) F. Hodel, M. Macouin, A. Triantafyllou...Neoproterozoic serpentinites (Bou Azzer ophiolite, Anti-Atlas, Morocco), Precambrian Research (2017)...Neoproterozoic serpentinites (Bou Azzer ophiolite, Anti-Atlas, Morocco). F. Hodel(1), M. Macouin(1),... Department of Fundamental & Applied Geology â Mining Geology, Univ. de Mons, 7000 Mons, Belgium 3 Laboratoire...DĂ©partement de GĂ©ologie, EGGPG, 24000 El Jadida, Morocco 6 Instituto de Astronomia, GeofĂsica e CiĂȘncias |  | | Journal (article/letter/editorial) | | upper one with higher-Cr# [= Cr/(Cr + Al), 0.6-0.7] spinel and lower one with lower Cr# (0.5) . Silicate mesostasis...composed of stringy serpentine and chlorite. Cr-spinel grains are occasionally found dispersed within...as well as from the Late Proterozoic Bou-Azzer ophiolite in Morocco (Gahlan et al., 2006; Gahlan and Arai...chemical analyses of magnetite, chromian spinel (hereafter Cr-spinel) and silicate minerals were done using...chemical profiles of elements around and across the Cr-spinel and magnetite were done at an accelerating voltage |  | | Journal (issue) | | Number Five Famous mineral localities: Bou Azzer, Morocco _______________________ avrea r gger Ait...338 COVER ER THRITE crystal, 3 mm, from Bou Azzer, Morocco. G. Favreau collection; Robert Vernet photo...The Franklin Mineral Museum and the Sterling Hill Mining Museum have taken the New Jersey suite, the New...divisions. Other exhibits included a case showing early mining methods, a case of antique mine lamps, worldwide...Sarp9, Gian Carlo Parodi10 and Ste an ei 11 Bou Azzer has produced the worldâs finest specimens of erythrite |  | | Journal (issue) | | crystal, 2.1 cm, from Altyne-Tyube, Russia. (2) Spinel crystal, 1.4 cm, from Ceylon. (3) Euclase crystal...stories about chemistry, physics, geology, and mining and mineralogical history. They also engage onlookers...given the poorly developed system in those days for mining and distributing collector-quality mineral specimens...and dealers. He also worked as a consultant to mining companies around the world, and took every opportunity...SvĂ€todusna deposit, LubietovĂĄ, BanskĂĄ Bystrica Region, Slovakia. Will and Rika Larson collection; Robert |  | ColĂĄs, Vanessa, GonzĂĄlez-JimĂ©nez, JosĂ© MarĂa, CamprubĂ, Antoni, Proenza, JoaquĂn A., Griffin, William L., Fanlo, Isabel, OâReilly, Suzanne Y., Gervilla, Fernando, GonzĂĄlez-Partida, Eduardo (2019) A reappraisal of the metamorphic history of the Tehuitzingo chromitite, Puebla state, Mexico. International Geology Review, 61 (14) 1706-1727 doi:10.1080/00206814.2018.1542633 | Journal (article/letter/editorial) | | 1950 and 1960, while the precise data about the mining history and the ore production is absent (Proenza...work were collected from dumps close to the old mining works from the Tehuitzingo chromite deposits (Figure...(FMASH). The considered solid solutions were Cr-spinel (see Appendix 2), eskolaite (Chatterjee et al....conciliates very well with the chemistry of chromian spinel from MORB sources (Figure 7 (d)). An estimation...(PagĂ© and Barnes 2009). Data sources for chromian spinel of different tectonic settings taken from Bonavia |  | | Journal (article/letter/editorial) | | of production results versus estimates in placer miningâR.H.T. Garnett 175 Mineralogical domains within...sediment geochemistry of the Vilyuchinsky gold district, Southern Kamchatka, Russian FederationâM.Z. Abzalov...formation of the giant Zn-Pb-Ag ± Ba deposits, Red Dog district, 811 549 INTERESTING PAPERS IN OTHER JOURNALS...microchemistry in exploration pits of the Batouri gold district, SE CameroonâA. Vishiti, C.E. Suh, B. Lehmann... Barnes, and E.V. Pushkarev Ontogeny of ore Cr-spinel and composition of inclusions as indicators of |  | | Journal (article/letter/editorial) | | complementary cordierite moats and cordierite + spinel symplectites located at former garnet-sillimanite...decompression phase is represented by sapphirine-spinel-plagioclase symplectites, which presumably replace...Secondary zoning toward the plagioclase-orthopyroxene spinel symplectites shows an increase in the Fe content...longer than the late plagioclase-orthopyroxene spinel symplectites. These time scales reflect the duration...sediment-hosted Cu-Co mineralization in the Kunene Region, northwestern Namibia. The DOF is hosted in Neoproterozoic |  | | Report (issue) | | titanomagnetite Mg-Gr-ilmenite Mg-Gr-Nb-ilmenite Mg-Cr-spinel Mg-tephroite Mg-titanomagnetite Na-Ca-enstatite...lscorite Compositional varieties Al-greenalite Al,Cr spinel Al-Ti-magnetite Bi-geversite Bosjemanite Ce-barite...kimberlite pipe, Farm Dorst Fontein K 77, Kimberley district, Northern Cape Province (Parry and Wright, 1925)...in the Wessels mine, Farm Wessels 227, Hotazel district, Northern Cape Province (Von Bezing et al., 1991...kilometres southwest of Cnydas West, Gordonia district, Northern Cape Province and from Karelia, Russia |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during...specimens were brought to the 2003 Tucson show. MOROCCO Imilchil area. Outcrops of episyenite and of contact-metamorphic |  | | Book (volume) | | cm1 is called the fingerprint region. Usually IR spectrum in this region contains very complicated series...overlapping bands. The importance of the fingerprint region is that each mineral species produces a different...500 to 800 cm1 can be considered as âfingerprint regionâ sensitive to the composition and the topological...see Fig. 1.9), but generally IR spectrum in this region is characteristic of all these minerals. In IR...vibrations of a large number of atoms within the region of coherent vibrations. However, in real periodic |
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