 | | Journal (issue) | | Pohl-Ströher collection; Tom Spann photo. Figure 14. Calcite, 20 cm, from Rio Grande do Sul, Brazil. Will Johnson...volume 54, January–February, 2023 19 Figure 17. Calcite on amethyst, 9.4 cm, from Rio Grande do Sul, Brazil... ex Steve Smale; Tom Spann photo. Figure 18. Calcite with celadonite inclusions, 20 cm, from the Rio...January–February, 2023 Figure 19. Rhodonite on calcite, 7 cm, from Morro da Mina mine (“Mine on the Hill”)...photo. Reference: Menezes (2009). Figure 26. Calcite on amethyst, 14 cm, from Ametista do Sul, Rio Grande |  | | Journal (issue) | | fluorite, sericite, chlorite, illite, kaolinite and calcite. Exploration of the area of the Bairendaba deposit...pyrrhotite, sphalerite etc. In late 351 Figure 8. Calcite crystals with acicular boulangerite, 13.3 cm, from...associated with fluorite, quartz and calcite. Calcite CaCO3 Calcite has been found at Bairendaba as flattened...16. Pyrrhotite in tabular plates with quartz, calcite, black sphalerite and mica, 9 cm, from the 2019...53, May–June, 2023 Figure 17. Pyrrhotite with calcite and fluorite, 13 cm, from the Bairendaba deposit |  | | Journal (issue) | | 1 FIGURE 2 Geological map of the Republic of Madagascar at 1:1,000,000 scale (Roig et al., 2012). ne...Moz am biq ue Ch an © MINISTRY OF MINES, MADAGASCAR milestones and development projects to help...Geological map of Madagascar at 1:1,000,000 scale (H. Besairie, 1964). © MADAGASCAR GEOLOGICAL SERVICE... PHOTO 1 BUMIFOM headquarters, Tananarive, Madagascar, 1950. © BRGM N°21_AFRICA, A LAND OF KNOWLEDGE...(Angola, Burkina Faso, Ethiopia, Guinea, Kenya, Madagascar, Mali, Mauritania, Senegal, Tanzania), 2004. |  | | Journal (issue) | | 1O cm groBer Riesenkrista/1. Fund 1922 nahe Vangaindrano, Prov. Fianarantsona, Madagaskar Stuck von Laurent...bekannt. Neueste Funde von 2022 an der Fundstelle Vangaindrano, Prov. Fianarantsoa haben gut ausgebildete dunkel...Oben links und unten: Tafe/iger Sapphirin van Vangaindrano, Provinz Fianarantsona. Neufund 2022. Oben rechts...Generation mikrokristalliner Adamine und kleiner Calcite i.iberzogen ist. Die Pseudomorphosen zeigen urspri |  | | Journal (issue) | | and Hope Diamonds . . . Opals from Ethiopia—and Madagascar Composite Turquoise . . . Microtomography of...114 New Occurrence of Fire Opal from Bemia, Madagascar Martina Simoni, Franca Caucia, Ilaria Adamo,...Effects of Heat Treatment on Zircon Inclusions in Madagascar Sapphires Faceting Transparent Rhodonite from...Gem News International: A new gem material from Madagascar. G&G, Vol. 40, No. 4, pp. 339–340. Gaillou E...TECHNIQUES A NEW OCCURRENCE OF FIRE OPAL FROM BEMIA, MADAGASCAR Martina Simoni, Franca Caucia, Ilaria Adamo, |  | | Book (volume) | | 1910; 5, 1913; Paris. (1922-1923). Mineralogie de Madagascar. 3 volumes: vols. 1, 2, 1922; 3, 1923; Paris...pyrrhotite, chalcopyrite and other sulfides in a quartz-calcite-garnet gangue (Cable, Montana); in the so-called...various silver minerals, sulfides and zeoa gangue of calcite, barite, fluorite, and quartz (Kongsberg) silver...nickel and cobalt and other silver minerals in a calcite or barite gangue (Cobalt); with uraninite and nickel-cobalt...in small amounts, chalcocite, bornite, epidote, calcite, prehnite, datohte, chlorite and zeolites, indicating |  | | Book (edition) | | opaque mineral to reflect the light gypsum. 3 - calcite, 4 - fluorite, 5 - apatite, 6 - ortho- beam on...Ambohitromby and Tongfeno, S of Betafo, both Madagascar. Tabular crystals to 1 cm in Alpine fissures...brown crystals to 2 cm or gray-black grains with calcite and rhodochrosite in Au-Te veins at Sacaramb, at...co.. Maine. Excellent walls of the metasomatic calcite-cored vein-dikes in a cleavelandite CI)stals. tabularandto...metamorphic marble at Ambatoarina, near Ambositra, Madagascar (ambatoarinite). AM 60, 280-284, 1975. = = |  | | Report (edition) | | • • • Abyssinia (Ethiopia) Belgian, Congo .. Madagascar .. I I • • • • • . • • • • • • • • ...investigations are proceeding on the ore-body itself. Madagascar Platin11m has been recovered in small quantities...the beds of several rivers on the east coast of Madagascar. It occurs, associated with gold, in small rounded...miles north-west of Vangaindrano, that platinum " ras fi.1~st discovered in Madagascar in 1904. A percentage...sand, 2·3. The annual production of platinum iri Madagascar during 1909 to 1911 was 1, 9 and 5 troy oz. 1·espectively |  | | Book (edition) | | 1988) Min. Mag. 52, 292. Agaric minerJI. var. of calcite. A.F. Cronstedt ( 1758) FcYrsok Min., p. 1 2. An...An early name for rock m ilk. a soft form of calcite. Named from agaricum. · fungus·. Agate. var. of...Alabaster. var. of gypsum (formerly sometimes of calcite too). A. Cronstedt ( 1758) Mincralogic. p. 1 8...Min. 38. 265. Orthorhombic. (TL) Ambatoarina. Madagascar. Named for locality. Amber. a fossil resin. Contains...Sac.fr. Min. Crist. 83. 295. (11..) Ampangabe. Madagascar. Am p h ibole. group of chain silicate minerals |  | | Report (issue) | | Amphibolite facies: Middle and upper subfacies: Calcite-diopside skarn ______________________ Quebec, ...granite Malagasy Republic __________________ and calcite pegmatite. -------- -------- 1 -------- -------1...concentrates studied by the Service Geologique [Madagascar] in 1955 (Behier, 1955, p. 140). Systematic studies...intruded by granite and by veins of calcite pegmatite composed of calcite, quartz, microcline, albite, celestite...occur as an accessory in the granite, but in the calcite pegmatite the grains of monazite are as much as |  | | Report (issue) | | Java Sumatra Iran Italy Kenya Malagasy Republic (Madagascar) 15 appears to warrant. Non productive deposits...quartz, sericite, chlorite, chloritoid, carbon, and calcite. Tourmaline, zircon, and rutile are also present...first discovered in 1904 in the gold placers of Madagascar, where it was recovered at several localities;...metals. This site is about 40 miles northwest of Vangaindrano in the valley of the Isonjo River, a tributary...in percent, of platinum metals, southeastern Madagascar (Malagasy Republic) Platinum _____________ ------ |
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