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ottrelite

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Journal Article
Published: 01 August 1994
European Journal of Mineralogy (1994) 6 (4): 547–555.
Journal Article
Published: 01 September 1969
Geological Magazine (1969) 106 (5): 452–456.
Journal Article
Published: 01 January 1985
Canadian Journal of Earth Sciences (1985) 22 (1): 72–84.
...A. M. Goodwin; H. G. Thode; C.-L. Chou; S. N. Karkhansis Abstract The 2.7 Ga old Helen Iron Formation (HIF) with its uniquely large siderite–Pyrite orebody conformably overlies chemically altered rhyolite–dacite pyroclastic rocks, including an ottrelite-bearing alteration pipe, the product...
Journal Article
Published: 01 August 1984
American Mineralogist (1984) 69 (7-8): 777–782.
... Massif, and also contain andalusite, ottrelite or chloritoid, sudoite, hematite, pyrophyllite, chlorite. Davreuxite is transparent, optically biaxial, negative; α = 1.660(5), β = 1.684(2), γ = 1.690(2); 2 V α = 48(5)°, 2 V α (calc.) = 52.5°; Z || b; X ≈ ⊥ (100). The mineral is monoclinic, space group P 2...
Journal Article
Journal: GSA Bulletin
Published: 01 March 1971
GSA Bulletin (1971) 82 (3): 707–716.
...M. LOFTI ABDEL-KHALEK; S. G KHOURY Abstract The rocks in the vicinity of Otter River, in the west-central Piedmont of Virginia, consist mainly of ottrelite-graphite phyllites, micaceous schists, micaceous gneisses, hornblend gneisses, and a highly schistose zone of chlorite-tremolite schist...
Journal Article
Journal: Economic Geology
Published: 01 May 1954
Economic Geology (1954) 49 (3): 310–316.
.... Evidence for these relationships is to be found in the origin of the ottrelite schist of the footwall and in the shearing and veining of the hangingwall. These events preceded the emplacement of the Algoma granite from which the mineralizing solutions are believed to come. GeoRef, Copyright 2006...
Journal Article
Published: 01 June 1946
American Mineralogist (1946) 31 (5-6): 313–316.
... texts describing ottrelite and chloritoid solely as stress minerals resulting from the dynamic metamorphism of sedimentary rocks. Copyright © 1946 by the Mineralogical Society of America 1946 Mineralogical Society of America ...
Journal Article
Published: 01 December 2003
The Canadian Mineralogist (2003) 41 (6): 1527–1528.
... to have the authors point out to one and all that by the same token, the manganese-dominant analogue of chloritoid is ottrélite , named after the discovery locality at Ottré, not ottrelite, as it is spelled in the Glossary , or Mn-chloritoid, as it is called by most metamorphic petrologists. And which...
Journal Article
Published: 01 November 2003
European Journal of Mineralogy (2003) 15 (6): 1063–1068.
... of supergene oxidation, Copiapó mining district, northern Chile . Am. Mineral ., 54 , 1684 – 1710 . Theye , T. & Fransolet , A.-M. ( 1994 ): Virtually pure ottrelite from the region of Ottré, Belgium . Eur. J. Mineral ., 6 , 547 – 555 . Ugarte , F. J. & Burkin...
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Published: 01 January 2013
DOI: 10.1180/DHZ.11
EISBN: 9780903056434
... chloritoids (ottrelite) with Fe 2+ ↔ Mn replacement as high as 96 atom% occur in schists from the Ardennes, Belgium. Manganese has a marked preference for chloritoid rather than coexisting chlorite in these rocks. Some substitution of Al by Fe 3+ (or Cr 3+ in a few Mg-rich chloritoids) occurs...
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Journal Article
Published: 01 October 2008
European Journal of Mineralogy (2008) 20 (5): 993–998.
... Cryst ., A32 , 751 – 767 . Sheldrick , G.M. ( 1997 ): SHELXS97 and SHELXL97 . University of Göttingen , Germany . Theye , Th. & Fransolet , A.-M. ( 1994 ): Virtually pure ottrelite from the region of Ottré, Belgium . Eur. J. Mineral ., 6 , 547 – 555...
FIGURES
Journal Article
Published: 01 April 2014
The Canadian Mineralogist (2014) 52 (2): 121–128.
... T. Fransolet A.-M. ( 1994 ) Virtually pure ottrelite from the region of Ottré, Belgium . European Journal of Mineralogy 6 , 547 – 555 . Vignola P. Diella V. Ferrari E.S. Fransolet A.-M. ( 2011 ) Complex mechanisms of alteration in a graftonite+sarcopside...
FIGURES
Journal Article
Published: 01 April 2005
The Canadian Mineralogist (2005) 43 (2): 623–635.
... in SalmChâteau . Ph.D. thesis, University of Leuven , Leuven, Belgium . Theye , T. & Fransolet , A.-M. ( 1994 ): Virtually pure ottrelite from the region of Ottré, Belgium . Eur. J. Mineral . 6 , 547 – 555 . Van Wambeke , L. ( 1954 ): Sur la présence de tétradymite (Bi 2...
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Journal Article
Published: 18 April 2011
Canadian Journal of Earth Sciences (2011) 48 (4): 703–718.
... to 30 m, where they are interlayered with red schists composed of mica, quartz, andalusite, spessartine garnet, hematite, and kaolinite ( Kramm 1980 a ). The sample was collected near Salm-Château, just south of Vielsalm. The manganese-rich and highly oxidized ottrelite (Mn, Fe, Mg chloritoid...
Journal Article
Published: 08 March 2024
American Mineralogist (2024)
...], and ottrelite [Mn2+Al2O(SiO4)(OH)2], because they 2056 form a continuous solid solution and they are rarely differentiated in reports of metamorphic 2057 rock modes. The broad pressure-temperature stability field of chloritoid leads to a wide range 95 Always consult and cite the final, published document. See...
Journal Article
Published: 02 January 2004
Reviews in Mineralogy and Geochemistry (2004) 56 (1): 495–552.
..., titanite, apatite, mica, and manganoan calcite. In glaucophane schist and associated rocks from the Ile de Groix (Brittany, France) piemontite coexists with ottrelite and is only found in rocks that lack garnet and possibly reequilibrated at lowest greenschist facies conditions. In these rocks the Mn...
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Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 50 (1): 487–549.
... in a quartz vein with pyrophyllite, ottrelite and davreuxite that cuts phyllites containing chloritoid, andalusite and spessartine, at Ottré, Ardennes Mountains, Belgium. The vein was emplaced during the later stages of metamorphism, which peaked near 380°C and 1–2 kbar. Beryllium could have been remobilized...
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Series: Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.204.01.14
EISBN: 9781862394520
...-bearing pyrite-siderite veins in metarhyolites and Pz-schists; 15, veins and nests of quartz + siderite + sphalerite + galena + magnetite + molybdenite + cassiterite + stannite (Fojnica—MBS Mts); 16, quartz veins in ottrelite schist with antimonite + sphalerite + wolframite + silver-bearing lead-antimony...
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Series: Geological Society, London, Geology of Series
Published: 01 January 2008
DOI: 10.1144/CEV1P.5
EISBN: 9781862393929
... recognized because of its calcareous beds which contain iron and manganese nodules. In the southern part of the Stavelot Inlier the slates contain beds with intercalated coticule, andalusite, garnet and volcanic rocks. The base is formed by a slaty sandstone containing coarse ottrelite crystals. The third...
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Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2020
DOI: 10.5382/SP.23.33
EISBN: 9781629496429
...-pit mining, noted the widespread presence of chloritoid ± sericite ± paragonite schist that was varyingly mapped as “speckled schist” and “ottrelite.” Several lines of evidence suggest that this assemblage represents metamorphosed synvolcanic aluminosilicate alteration of the epiclastic and felsic...
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