 | | Journal (article/letter/editorial) | | on 30/10/2014 19:12:01. Optical Character of Tridymite frem the Euganean Hills. By M. S C H U S T E jJahrb...are found on Nonte Gioino, near Teolo, and near Zovon, in cavities of an oligoclase trachyte. They are...axial system, whence it may be inferred that tridymite belongs either to the monoclinic o r t o the triclinic... Moreover, the optical principal sections of tridymite are not parallel to either of the external faces...10". From these observations it follows that tridymite belongs t o the t r i c l i n i c system, and |  | | Journal (article/letter/editorial) | | Nachrichten, aber über eine optische Prüfung der Tridymite wird bei Z i r k e l n u r angegeben, dass sich...Ueberlassung einigen Materiales der ausgezeichneten Tridymite aus den Euganäen an Herrn Dir. T s c h e r m a...standen mir zur Untersuchung nunmehr zu Gebote: Tridymite von Tardree Mt.in Irland, Perlenhardtim Siebengebirge...vollkommene Rinden bilden, jene Rinden, welche die Tridymite der Perlenhardt, des Tardree Mt. u. a. 0 . überziehen...Gesteinen vorkommenden, dachziegelförmig gruppirten Tridymite. (Fig. 8.) In den äusseren Conturen bleiben sie |  | | Book | | is an example of a poly- tites. been found in Italy (Sicily and Romagna), Diamond is found in South...Australia, Morocco, Zambia, the Balkan countries, Italy, etc. converted into beta-sulfur (monoclinic for...France. fi? A Sulfur (ca. x 1), Belisio, Pesaro, Italy. Octahedral diamond crystal > : (ca. x 0.5) Kimberley...sublimation craters. Germany, Hungary, Japan, and Italy. of sea water. Deep deposits, due to their ASSOCIATED...Violet rock salt (ca. x 1), Calascibetta, Enna, Italy. TRANSPARENT MINERALS 37 FLUORITE FLUORITE |  | | Book (edition) | | expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...the revolution in 1997. Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga...Katanga administrative region again. The former Kivu province is now divided to three regions: INTRODUCTION...conditions in the gold-bearing "greenstone" in Abitibi province in northern Ontario and Quebec. Some genetic problems... Actinolite - byssolite, 50 mm, Valle d'Aosta, Italy, G short-columnar crystals, usually in granular |  | | Book (volume) | | Vyo—xjyt!/z+! +N Pe 5, */o— yz t!/o; yuz; yX2; Vo—yj at rete; ytVo,'/o—xet/o; Yx2; Yt Vay, PR2;...1922: K; 1923: O&P; Y; 1924: D; J,P&W; W; 1925: D; L; vO; P&B; 1929: A; J,B&W; 1931: A; 1932: N; O&lI; 1933:...S&vS; 1925: dS&K; 1930: K&M; 1958: H 1924: B; 1925: vO; 1934: W&E; 1938: T&B; 1939: S; 1952: NBS; 1959:...H; 1927: S&V; 1928: S&V; 1938: A&P; 1956: B 1925: vO; 1929: ML&M; 1930: M; 1931: N; 1932: Q; 1984: B&B;...03 1939: M; 1956: S,D&H 1923: S; 1924: B; 1925: vO; S; 1929: B; 1931: H,B&M; H,M&B; 1934: K; T; |  | | Book (volume) | | icositetrahedron. Rome, crystals kilometres Italy. on from brown chrome-iron-stone, Bissersk,...rhombic-dodecahedron. Almandine, Granatenkopf, 12. Italy, brown rhombic-dodecahedron with Saranovskaya...Frascati, 10. valley, Yakutsk, Cziklowa, 9. Italy. diopside. dodecahedron. Yakutsk, Xalostoc,...carmine-red. outside Geraes, Campo 11. basal Italy. termination. Bavarian Lam, (“Rubellite”), ...Pala, 9. granite. —2R). Minas 8. and white Italy. Elba, first granite; truncating near Sarapulka |  | | Book | | 2013). MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series...Administered Tribal Areas and North West Frontier Province. Ilmenite crystal clusters to 12 cm across have...Mountain, Warsak district, North West Frontier Province. Surface diggings worked by local people on Zagi...onalcommunication, 2007). 4 ITALY Rio Marina area, Island of Elba, Tuscany. Elba (Latin:...attributions-the Xinig mine, Quinghai Province, and the Nan Dang mine, Guangxi Province-and those seen at Tucson were |  | | Book (edition) | | Two different Hg: (a) uOO; fmi; Ouf, S: (b) vO|; vv§; OvJ. ; the other u it is of these two arrangements...8 5 > . 8887 8 8 8 73 > 5 8 8 8' (0/) Tridymite is stable in the range between quartz and cristobalite...cristobalite (from 870° to 1470° C). Hexagonal /3-tridymite passes through two inverThe intermediate a' and...molecules. It has been impossible to get untwinned a-tridymite and some uncertainty must in consequence attach...measurements. Apparently, however, twinned a-tridymite can form The unit hexagonal cell of this high |
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