...Gunnar Raade; Tonči Balić-Žunić Abstract The crystal structure of (Be,□)(V,Ti) 3 O 6 , a mineral discovered in the emerald deposit of Byrud, Norway, has been solved and refined to R 1 = 4.51% for 1413 unique reflections. The structure is orthorhombic, Pnma , with lattice parameters a 9.982(1...

...°11′52″E). It should be noted that the ‘y’ in Byrud is not pronounced ‘ai’. The Norwegian ‘y’ is a rounded front vowel /y/, similar to French ‘u’ and German ‘ü’. Two cotype specimens are deposited in the collections of the Natural History Museum, University of Oslo, with catalogue number 43570...

... kyzylkumite-like mineral with an orthorhombic norbergite-type structure from Byrud mine, Norway is discussed. Both minerals have similar X-ray powder diffraction patterns. kyzylkumite tivanite rutile montroseite crystal structure crystal chemistry titanium vanadium modular structures...

... chains of edge-sharing V and Ti octahedra interconnected by individual BeO 4 tetrahedra. Byrudite is named after the type locality at Byrud farm. Two cotype specimens are deposited in the Natural History Museum, University of Oslo, Norway. O.C.G. Comment: The mineral is isotypical...

... 2002 , Krzemnicki & Bosshart 2002 ) are in good agreement. Notably, the Binntal emerald displays chemical overlap with the deposits at Byrud, Norway ( Loughrey et al . 2013 ). Selected cation concentrations relative to Al and Mg+Mn+Fe are plotted as Figures 5 and 6 , respectively. In Figure 5...

... locality Full authorship of proposal Mineral name, if the authors agree on its release prior to the full description appearing in press Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number...

..., ilmenite, and pseudobrookite. The mineral is named in based on the amphibole nomenclature scheme of the subcommittee on amphiboles of the IMA-CNMMN. The type material has been deposited at the Department of Mineralogy of the Landesmuseum Joanneum Graz (catalog no. 83854-83855). R.R. The unnamed...

... . Loughrey, L., Marshall, D., Ihlen, P., & Jones, P. (2013) Boiling as a mechanism for colour zonations observed at the Byrud emerald deposit, Eidsvoll, Norway: fluid...

.... (2013) Boiling as a mechanism for colour zonations observed at the Byrud emerald deposit, Eidsvoll, Norway: Fluid inclusion and stable isotope and Ar-Ar studies . Geofluids 13 , 542 – 558 . Marshall, D...

.... (2013) Boiling as a mechanism for colour zonations observed at the Byrud emerald deposit, Eidsvoll, Norway: Fluid inclusion, stable isotope, and Ar-Ar studies . Geofluids 13 , 542 – 558 . Marshall, D...

...., Marshall, D., Ihlen, P., & Jones, P. (2013) Boiling as a mechanism for colour zonations observed at the Byrud emerald deposit, Eidsvoll, Norway: Fluid inclusion and stable isotope and Ar-Ar studies...

... Mamandur polymetal deposit, India : Journal of Earth System Science , v. 122 , p. 93 – 106 , doi: 10.1007/s12040-012-0255-x . Rondeau , B. , Fritsch , E. , Peucat , J. , Nordrum , F.S. , and Groat , L.A. , 2008 , Characterization of emeralds from a historical deposit: Byrud...

.... , Fritsch , E. and Peucat , J.J. , 2008 . Characterisation of emeralds from a historical deposit: Byrud (Eidsvoll), Norway . Gems and Gemology , 44 ( 2 ), 108 – 183 . Schwarz , D. , ( 1991 ) Australian emeralds. Australian Gemmologist , 17, 488 – 497 . Seifert A.V...

... , 4 , 287 – 299 . Loughrey , L. , Marshall , D.D. , Ihlen , P. , and Jones , P. ( 2013 ) Boiling as a mechanism for colour zonations observed at the Byrud emerald deposit, Eidsvoll, Norway, fluid inclusion, stable isotope and Ar–Ar studies . Geofluids , 13 , 542 – 558...

... rocks or in hydrothermal deposits associated with volcanic and shallow-level plutonic rocks and skarns. Because of the extensive differentiation needed to enrich rocks sufficiently in beryllium for beryllium minerals to form, these minerals are relative latecomers in the geologic record: the oldest...

... deposits including hot-spring systems (Butte, USA, Silverton, USA; Långban, Sweden; Golconda, USA) surface placer • common / source of gems; most placer Be minerals are believed to be derived from pegmatites or metamorphosed pegmatites, but they can come from many sources of resistant Be minerals...