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wittite

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Journal Article
Published: 01 February 2000
The Canadian Mineralogist (2000) 38 (1): 23–34.
...Yuri S. Borodaev; Anna Garavelli; Carlo Garbarino; Silvana M. Grillo; Nadezhda N. Mozgova; Natalia I. Organova; Nikolay V. Trubkin; Filippo Vurro Abstract Wittite and cannizzarite, two rare and structurally related nonstoichiometric sulfosalts belonging to the system Pb–Bi–S–Se, were found together...
FIGURES | View All (13)
Journal Article
Published: 01 August 1980
American Mineralogist (1980) 65 (7-8): 789–796.
...William G. Mumme Abstract Studies of specimens from Falun, Sweden, reported to contain the two minerals weibullite and wittite have established at least three selenium-rich bismuth–lead sulphosalts of similar chemistry. A nomenclature is proposed in which two of the minerals retain the old names...
Journal Article
Published: 01 October 1976
American Mineralogist (1976) 61 (9-10): 839–852.
Journal Article
Journal: Economic Geology
Published: 01 April 1975
Economic Geology (1975) 70 (2): 369–383.
Image
Se-bearing galena (11.4–11.8 Se wt%) on the surface of <span class="search-highlight">wittite</span>. The spots i...
Published: 01 February 2000
F ig . 6. Se-bearing galena (11.4–11.8 Se wt%) on the surface of wittite. The spots indicate different Se contents in wittite:1) 8.65 wt%, 2) 8.45%, 3) 9.62%, 4) 9.99 %.
Image
a) The first type of SAED pattern for <span class="search-highlight">wittite</span> from Vulcano with strong H su...
Published: 01 February 2000
F ig . 9. a) The first type of SAED pattern for wittite from Vulcano with strong H subcell reflections. b) The second type of SAED pattern for wittite from Vulcano with strong H and Q subcell reflections. c) The third type of SAED pattern with strong H and Q subcell reflections and another
Image
a) The first type of SAED pattern for <span class="search-highlight">wittite</span> from Vulcano with strong H su...
Published: 01 February 2000
F ig . 9. a) The first type of SAED pattern for wittite from Vulcano with strong H subcell reflections. b) The second type of SAED pattern for wittite from Vulcano with strong H and Q subcell reflections. c) The third type of SAED pattern with strong H and Q subcell reflections and another
Image
a) The first type of SAED pattern for <span class="search-highlight">wittite</span> from Vulcano with strong H su...
Published: 01 February 2000
F ig . 9. a) The first type of SAED pattern for wittite from Vulcano with strong H subcell reflections. b) The second type of SAED pattern for wittite from Vulcano with strong H and Q subcell reflections. c) The third type of SAED pattern with strong H and Q subcell reflections and another
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UNIT SUBCELL VALUES OF <span class="search-highlight">WITTITE</span> AND CANNIZZARITE
Published: 01 February 2000
TABLE 3. UNIT SUBCELL VALUES OF WITTITE AND CANNIZZARITE
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ELECTRON-MICROPROBE DATA ON <span class="search-highlight">WITTITE</span> AND CANNIZZARITE FROM VULCANO
Published: 01 February 2000
TABLE 1. ELECTRON-MICROPROBE DATA ON WITTITE AND CANNIZZARITE FROM VULCANO
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X-RAY POWDER-DIFFRACTION DATA FOR <span class="search-highlight">WITTITE</span> AND CANNIZZARITE
Published: 01 February 2000
TABLE 2. X-RAY POWDER-DIFFRACTION DATA FOR WITTITE AND CANNIZZARITE
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Location of fumaroles at La Fossa crater from which cannizzarite and <span class="search-highlight">wittit</span>...
Published: 01 February 2000
F ig . 1. Location of fumaroles at La Fossa crater from which cannizzarite and wittite were sampled.
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Volumes (Å 3 ) of the H and Q subcells increase with increase in Se conten...
Published: 01 February 2000
F ig . 10. Volumes (Å 3 ) of the H and Q subcells increase with increase in Se content in cannizzarite and wittite.
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Relation between Se/(S + Se) and Bi/(Bi + Pb), both in at.% in 141 analyzed...
Published: 01 February 2000
F ig . 8. Relation between Se/(S + Se) and Bi/(Bi + Pb), both in at.% in 141 analyzed samples of cannizzarite–wittite.
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Striated elongate crystals of <span class="search-highlight">wittite</span> (Se ≈ 10 wt%) with small crystals of ...
Published: 01 February 2000
F ig . 4. Striated elongate crystals of wittite (Se ≈ 10 wt%) with small crystals of galena on the surface. CamScan 4DV scanning electron microscope. Scale bar: 100 μm.
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Morphology of <span class="search-highlight">wittite</span> crystals (Se content ranging from ~8 to ~14 wt %. Var...
Published: 01 February 2000
F ig . 3. Morphology of wittite crystals (Se content ranging from ~8 to ~14 wt %. Variation of color is due to the Se contents; the highest Se contents are in the darkest portions. a) Leaves, scale bar: 100 μm, b) elongate tabular crystals, scale bar: 300 μm.
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Composition of the analyzed Ag–Bi phases (a); see the text for more informa...
Published: 01 June 2010
: krupkaite, Lds: lindströmite, Lil: lillianite, Lrs: larosite, Mat: matildite, Mky: makovickyite, Mum: mummeite, Ney: neyite, Nuf: nuffieldite, Our: ourayite, Paa: paarite, Pad: paděraite, Pav: pavonite, Slz: salzburgite, Spb: schapbachite, Trs: treasurite, Vik: vikingite, Witc: wittichenite, Witt: wittite
Journal Article
Published: 01 June 2010
The Canadian Mineralogist (2010) 48 (3): 483–495.
... examined both natural and synthetic material. Electron-microprobe studies of its composition were performed by Mozgova et al . (1984 , 1988 , 1992) on material from Vulcano and Siberia, and by Mumme (1980) and Mozgova et al . (1992) on the related material, “wittite”, with an elevated Se:S ratio...
FIGURES | View All (4)
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Summary table of the mineralogy identified in the major ore types of the Ne...
Published: 01 May 2018
(+) Mawsonite (+) Stannoidite (+) Carrollite (+) Covellite (+) Pyrrhotite (+) (+) (+) (+) (+) (+) (+) (+) (+) Bismuth (+) (+) Gustavite (+) Junoite (?) (+) Wittite (?) (+) Cannizzarite
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Back-scattered electron images. (a) and (b) Inclusions of Te-bearing laitak...
Published: 01 August 2007
F ig . 11. Back-scattered electron images. (a) and (b) Inclusions of Te-bearing laitakarite (Ltk) within pyrrhotite (Po) in gold ores, Lega Dembi mine, Ethiopia. Hs: hessite, Bi: native bismuth. (c) Deformed lamellar intergrowths of laitakarite (Ltk) and wittite (Wit) from the Falun deposit