 | Díaz-Acha, Yael, Campeny, Marc, Casas, Lluís, Di Febo, Roberta, Ibañez-Insa, Jordi, Jawhari, Tariq, Bosch, Josep, Borrell, Ferran, Jorge-Villar, Susana Esther, Greneche, Jean-Marc, Tauler, Esperança, Melgarejo, Joan Carles (2022) Colours of Gemmy Phosphates from the Gavà Neolithic Mines (Catalonia, Spain): Origin and Archaeological Significance. Minerals, 12 (3) 368 doi:10.3390/min12030368 | Journal (article/letter/editorial) | | cryptocrystalline mixtures with jarosite, phosphosiderite, or goethite, variscite tends to acquire a...variscite, montgomeryite, crandallite, and phosphosiderite) occur along with sulphates (e.g., jarosite...spectrocolourimeter (X-rite Inc., Grand Rapids, MI, USA). The measurements were taken on dry samples, selecting...OH)(OH)6 ), jarosite (KFe3+ 3 (SO4 )2 (OH)6 ), phosphosiderite (FePO4 ·2H2 O), alunite KAl3 (SO4 )2 (OH)6...turquoise minerals with different proportions of phosphosiderite, crandallite, or halloysite. The colours of |  | | Report (volume) | | ................... Crystallized variscite from Utah.......................................... Introduction...62 62 4 CONTENTS. Crystallized variscite from Utah Continued. Page. Chemical composition........................... 75 Some minerals from Beaver County, Utah................................. 77 Introduction....................... Thaumasite from Beaver County, Utah..................................... Introduction... 1890, p. 178. 2 It must be remembered that no claim is made that these structural formulas actually |  | | Journal (article/letter/editorial) | | Sardinia; Ervedosa, Portugal) and metavariscite from Utah was investigated by diffuse reßectance and EPR spectroscopy...absorption spectrum of a variscite sample from FairÞeld, Utah, suggested the presence of V3+ (Rossman 2004). Such...rock. The metavariscite sample is from FairÞeld, Utah, U.S.A. This mineral is also cryptocrystalline and...Ervedosa and Pannecé. The metavariscite sample from Utah is almost Fe-free but is the richest in V. The variscite...whereas the Cr content of Pannecé variscite and Utah metavariscite is smaller. The concentration of V |  | | Book (edition) | | California ...................................... Utah ..................................................blue color, nnd the pincer deposits of Grnnito County, Dem·lodge Count.y, nnd nlong :Olissouri River...chn.lcedony; Mr. Maynard Bixby, of Salt Lake City, Utah, for specimens of jnsperlikc chalcedony; 1-Ir.W...15 miles east of Indian Springs, San Bernarclino County, hove been examined. This stone has been called"...It would cut into rather pretty low-priced gems. UTAH. Specimens of reel jn.sper-like chalcedony and |
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