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Journal Article
Published: 01 November 2018
American Mineralogist (2018) 103 (11): 1749-1760.
..., with a cubic space group and approximate composition Ca 48 Mg 16 [AlSi 4 (O,OH) 16 ] 1.5 (BO 3 ) 26 (CO 3 ) 16 ·14–16H 2 O, which may necessitate additional interstitial sites beyond those in the large cavities. Sakhaite harkerite solid solution crystal structure Lithium, Beryllium, and Boron...
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Journal Article
Published: 23 October 2018
The Canadian Mineralogist (2018) 56 (4): 425-449.
... containing abundant beryllium and boron mineralization and segregations of rounded quartz-tourmaline orbicules (tourmaline nests). This study focuses on the mineralogy of the miarolitic pegmatites and quartz-tourmaline orbicules and the geochemistry of the Erongo Granite. Erongo miarolitic pegmatites...
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Journal Article
Journal: Geology
Published: 07 September 2018
Geology (2018) 46 (10): 883-886.
...Lilianne Pagé; Keiko Hattori; Stéphane Guillot AbstractFluorine (50–650 ppm), bromine (0.03–0.3 ppm), iodine (0.03–0.4 ppm), boron (20–100 ppm) and nitrogen (5–45 ppm) concentrations are elevated in antigorite-serpentinites associated with the Tso Morari ultrahigh-pressure unit (Himalayas) exhumed...
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Journal Article
Published: 10 May 2018
Geochemistry: Exploration, Environment, Analysis (2018) 18 (4): 343-350.
...Angela Nigro; Giuseppe Sappa; Maurizio Barbieri AbstractBoron isotope composition was used to identify boron sources in groundwater in the eastern part of central Italy, on the west side of the lower alluvial plane of the Pescara river, a few kilometres from the coastline. This area...
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Journal Article
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 471-483.
...Bernd Wunder; Martin Kutzschbach; Luisa Hosse; Franziska D.H. Wilke; Hans-Peter Schertl; Christian Chopin Dumortierite was synthesized in piston-cylinder experiments at 2.5–4.0 GPa, 650–700 °C in the Al2O3–B2O3–SiO2–H2O (ABSH) system. Electron-microprobe (EMP) analyses reveal significant boron...
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Journal Article
Published: 01 January 2018
European Journal of Mineralogy (2018) 30 (1): 177-182.
... the presence of boron, while X-ray powder patterns revealed the close relationship with axinite, which was considered one mineral at the time. This relationship led Milton et al. (1953) to assume Mn as divalent, and consequently, they proposed the formula H(Ca,Mn,Fe,Mg) 3 Al 2 BSi 4 O 16 for axinite...
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Journal Article
Published: 01 October 2017
Mineralogical Magazine (2017) 81 (5): 1165-1189.
...M. Lacalamita; G. Balassone; E. Schingaro; E. Mesto; A. Mormone; M. Piochi; G. Ventruti; M. Joachimski AbstractFluorine-, boron- and magnesium-rich metamorphosed xenoliths occur in the Campanian Ignimbrite deposits at Fiano (southern Italy), at ∼50 km northeast of the sourced volcanic area...
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Journal Article
Published: 01 October 2017
American Mineralogist (2017) 102 (10): 2136-2141.
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Journal Article
Journal: Economic Geology
Published: 01 August 2017
Economic Geology (2017) 112 (5): 1269-1272.
Journal Article