 | | Book | | stalactiforme et rubanée sont en Oural et au Katanga. En France, hormis la célèbre mine de Chessy (localité-type...Vosges, en Auvergne, Var, Loire, Tarn, Savoie, Alpes-Maritimes, Corse, des Pyrénées, etc. 6à7 Couleur, transparence...(Vietnam) Goethite (Le Kaymar, Aveyron) Barytine (Côte d’Abot, Puy de Dôme) Ou dérivant du nom d’une personnalité...sont aussi appelées « semi-précieuses », sauf en France où cette désignation est interdite depuis 2002...manufacture chinoise Perle des joyaux de la Couronne de France Intaille romaine en ambre baltique Ambre (Belgique) |  | | Book (edition) | | fluorite Rutile “sixling” Cassiterite twin 28. Gypsum fishtail twin 29a. Normal and elongated dodecahedron...collection in shallow drawers or on shelves in a nice *The Dana numbers will be found in the classic mineralogy...chemical precipitates, formed, like rock salt and gypsum, by the direct evaporation of cutoff estuaries...sulfides. In caves we get calcite stalactites and gypsum rosettes. Even in fossils we may find quartz or...about 250 and The Mohs Hardness Scale Teale 2 Gypsum 3 Calcite (rhomb face) 4 Fluorite 5 Apatite 6 |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Eric Asselborn, M.D.: Montrevel-en-Bresse, Ain, France. F. John Barlow: Appleton, Wisconsin. Peter Bayliss:...Hungary. Fabien Cesbron: B. R. G. M., Orleans, France. Graham Chinner: Dept. of Earth Sciences, Cambridge...Massachusetts. Gilbert Gauthier: Maisons Laffitte, Paris, France. Legrand A. Gould: Pebble Beach, California. George...Reference Mineral Description and Feel 1 Tale 2 3 Gypsum Calcite 4 5 6 Fluorite Apatite Orthoclase a...fingers Scratched easily with the fingernail, as gypsum Just scratched by a copper coin, but not normally |  | | Book (edition) | | Mohs’ scale reads as follows: 1 2 3 4 5 Talc Gypsum Calcite Fluorite Apatite 6 7 8 9 10 Orthoclase...(1) to hardest (10). The scale is: (1) talc, (2) gypsum, (3) calcite, (4) fluorite, (5) apatite, (6) orthoclase...Greece. Other occurrences are found in Chile, Italy, France, Germany, Turkey, and Algeria. SELECTED REFERENCES:...Associated with gypsum, anhydrite, hexahydrite, loweite, quartz, and pyrite in the gypsum deposit of Schildmauer...‘‘gummite’’ at Margnac, in the Massif Central, France. SELECTED REFERENCE: Cesbron, F., et al., Min. |
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Lucéram, Nice, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France