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urusovite

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Journal Article
Published: 01 September 2000
European Journal of Mineralogy (2000) 12 (5): 1041–1044.
...Lidiya P. VERGASOVA; Stanislav K. FILATOV; Marina G. GORSKAYA; Alexey A. MOLCHANOV; Sergey V. KRIVOVICHEV; Vladimir V. ANANIEV Abstract Urusovite, ideally Cu[AlAsO 5 ], has been found in a fumarole in the North Breach of the great fissure Tolbachik eruption (1975-76, Kamchatka peninsula, Russia...
FIGURES
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Pseudomorphs of ericlaxmanite after <span class="search-highlight">urusovite</span>: ( a ) fragment of <span class="search-highlight">urusovite</span> ...
Published: 01 December 2014
F ig . 5. Pseudomorphs of ericlaxmanite after urusovite: ( a ) fragment of urusovite crystal crust replaced by ericlaxmanite; ( b ) lamellar crystals of ericlaxmanite on the surface of a pseudomorph. SEM (SE) images.
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( a ) Overgrowth of a crystal cluster of <span class="search-highlight">urusovite</span> (grey) by an ericlaxmani...
Published: 01 December 2014
F ig . 6. ( a ) Overgrowth of a crystal cluster of urusovite (grey) by an ericlaxmanite crust (white) and ( b ) overgrowth (with partial replacement) of alarsite (1) by urusovite (2) and later ericlaxmanite (3). Polished sections, SEM (BSE) images.
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Crystallization sequence of different arsenates and As-bearing potassic fel...
Published: 01 March 2018
Fig. 8 Crystallization sequence of different arsenates and As-bearing potassic feldspar: (a) As-rich (16 wt% As 2 O 5 ) potassic feldspar (As-KFs) overgrowing As-poor (<2 wt.% As 2 O 5 ) potassic feldspar (KFs), with tilasite (Tls) and sylvite (Slv); (b) alarsite (Als) surrounded by urusovite
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Partial pseudomorphs of deep green to dark green ericlaxmanite after crysta...
Published: 01 December 2014
F ig . 1. Partial pseudomorphs of deep green to dark green ericlaxmanite after crystal crusts of urusovite with bright, grass green kozyrevskite, light blue urusovite relics and white crusts of As-bearing orthoclase on volcanic scoria. Field of view: 5.75 mm across. Photo: I.V. Pekov and A.V
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Electron-microprobe analyses of <span class="search-highlight">urusovite</span> (wt. %).
Published: 01 September 2000
Table 1. Electron-microprobe analyses of urusovite (wt. %).
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X-ray powder diffraction pattern of <span class="search-highlight">urusovite</span>.
Published: 01 September 2000
Table 2. X-ray powder diffraction pattern of urusovite.
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The crystal morphology of <span class="search-highlight">urusovite</span> (a) and its optical orientation (b).
Published: 01 September 2000
Fig. 1. The crystal morphology of urusovite (a) and its optical orientation (b).
Journal Article
Published: 01 December 2014
Mineralogical Magazine (2014) 78 (7): 1553–1569.
...F ig . 5. Pseudomorphs of ericlaxmanite after urusovite: ( a ) fragment of urusovite crystal crust replaced by ericlaxmanite; ( b ) lamellar crystals of ericlaxmanite on the surface of a pseudomorph. SEM (SE) images. ...
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Journal Article
Published: 01 August 2001
The Canadian Mineralogist (2001) 39 (4): 1115–1119.
..., urusovite, orthoclase and johillerite. The mineral has an adamantine luster and a light blue to white streak. No cleavage has been observed. The mineral is transparent, biaxial, optically negative, α 1.76(1), β 1.92(1), γ 1.96(1), 2 V calc 50.0°. The optical orientation is Z = b , X ∧ c = 23° in the obtuse...
FIGURES
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Tetrahedral [AlAsO 5 ] sheet in the structure of <span class="search-highlight">urusovite</span>, CuAlAsO 5 , vie...
Published: 01 May 2004
Fig. 3. Tetrahedral [AlAsO 5 ] sheet in the structure of urusovite, CuAlAsO 5 , viewed from the top (a) and parallel to the sheet extension (b). Legend: AlO 4 tetrahedra = grey, AsO 4 tetrahedra = cross-hatched.
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Partial pseudomorph of green ericlaxmanite after light blue (turquoise) uru...
Published: 01 December 2014
F ig . 4. Partial pseudomorph of green ericlaxmanite after light blue (turquoise) urusovite forming a crystal crust on volcanic scoria. Field of view: 9 mm across. Photo: I.V. Pekov and A.V. Kasatkin.
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The structures of arsenates with infinite sheets of tetrahedra: (a) duggani...
Published: 01 January 2014
Figure 35 The structures of arsenates with infinite sheets of tetrahedra: (a) dugganite, (b) bergslagite, (c) kolicite, (d) tetrahedral sheets in the structure of sabelliite, the dark polyhedra are the (As 5+ ,Sb 5+ ) tetrahedra or trigonal pyramids of Olmi et al. (1995) ; (e) urusovite.
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Numerous grass-green prismatic crystals and crystal clusters of kozyrevskit...
Published: 01 December 2014
F ig . 7. Numerous grass-green prismatic crystals and crystal clusters of kozyrevskite with light blue urusovite and iron-black hematite on a crust consisting of colourless langbeinite and white As-bearing orthoclase. Field of view: 2.8 mm across. Photo: I.V. Pekov and A.V. Kasatkin.
Journal Article
Published: 24 November 2020
The Canadian Mineralogist (2020) 58 (5): 625–636.
..., anglesite, langbeinite, calciolangbeinite, metathénardite, belomarinaite, aphthitalite, krasheninnikovite, steklite, anhydrite, hematite, tenorite, sanidine, sylvite, halite, lammerite, urusovite, and gold. Eleomelanite occurs as interrupted crusts up to 6 mm across and up to 0.3 mm thick consisting...
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Journal Article
Published: 22 May 2020
Mineralogical Magazine (2020) 84 (4): 616–622.
..., fluorophlogopite, fluoborite, tilasite, anhydrite, pseudobrookite, sylvite, halite, lammerite, urusovite, ericlaxmanite, arsmirandite, svabite, krasheninnikovite, euchlorine, wulffite and alumoklyuchevskite. Badalovite forms oblique-angled prismatic crystals up to 1 mm × 1 mm × 5 mm, typically combined in groups...
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Typical associations of copper arsenates overgrowing crusts of colourless a...
Published: 01 February 2015
F ig . 1. Typical associations of copper arsenates overgrowing crusts of colourless aphthitalite covering basalt scoria in the Arsenatnaya fumarole: 1 – olive-green to dark olive-green popovite, 2 – grass-green kozyrevskite, 3 – deep-green ericlaxmanite, 4 – light-blue urusovite, 5 – deep
Journal Article
Published: 01 January 2019
European Journal of Mineralogy (2019) 31 (1): 159–166.
..., urusovite, bradaczekite, filatovite, hatertite, hematite, tenorite and wrightite. The mineral is named in honour of the Russian scholar Dr. Nina Aleksandrovna Ozerova (1930–2012), for her contributions to geochemistry, geology, metallogeny, ecology and the eco-geochemistry of mercury. Powder X-ray...
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Journal Article
Published: 01 March 2018
European Journal of Mineralogy (2018) 30 (2): 305–322.
...Fig. 8 Crystallization sequence of different arsenates and As-bearing potassic feldspar: (a) As-rich (16 wt% As 2 O 5 ) potassic feldspar (As-KFs) overgrowing As-poor (<2 wt.% As 2 O 5 ) potassic feldspar (KFs), with tilasite (Tls) and sylvite (Slv); (b) alarsite (Als) surrounded by urusovite...
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Journal Article
Published: 01 February 2015
Mineralogical Magazine (2015) 79 (1): 133–143.
...F ig . 1. Typical associations of copper arsenates overgrowing crusts of colourless aphthitalite covering basalt scoria in the Arsenatnaya fumarole: 1 – olive-green to dark olive-green popovite, 2 – grass-green kozyrevskite, 3 – deep-green ericlaxmanite, 4 – light-blue urusovite, 5 – deep...
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