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hydrohetaerolite

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Journal Article
Published: 01 April 1956
American Mineralogist (1956) 41 (3-4): 268–275.
...John McAndrew Abstract Hydrohetaerolite from Leadville, Colorado, is of tetragonal symmetry, space group I4/amd . The unit cell of dimensions a = 5.73 5 , c = 9.00 5 Å contains 4HZnMn 2- x O 4 , where x is approximately 0.4 and represents vacant cation positions. Decomposition into oxides...
Journal Article
Published: 01 April 1955
American Mineralogist (1955) 40 (3-4): 349–353.
... powder pattern. From the cell dimensions, the structures of Mn 3 0 4 and ZnMn 2 0 4 (hetaerolite) are evidently similar, and a further close analogy may well exist between Frondel's new mineral and hydrohetaerolite which also contains “structural water” (Frondel and Heinrich 1942). The writer recently...
Journal Article
Published: 01 January 1942
American Mineralogist (1942) 27 (1): 48–56.
... and Bradley in 1913. The Leadville mineral, for which the name hydrohetaerolite hasbeen proposed, differs from type hetaerolite in its fibrous character, in x -ray cell dimensions ( a 0 = 5.71, c 0 = 9.O4; body-centered tetragonal (?)), in slightly lower indices of refraction, and in apparently containing...
Image
BSE image of weathered rhodochrosite (sample 3–2). Hairlike aggregates of F...
Published: 01 November 2003
F igure 8. BSE image of weathered rhodochrosite (sample 3–2). Hairlike aggregates of Fe oxyhydroxides (Fe-oxy) fill the voids between hydrohetaerolite and rhodochrosite. Inset shows barely perceptible colloform textures of the hydrohetaerolite, magnified from the area in the box.
Journal Article
Published: 01 November 2003
American Mineralogist (2003) 88 (11-12): 1933–1942.
...F igure 8. BSE image of weathered rhodochrosite (sample 3–2). Hairlike aggregates of Fe oxyhydroxides (Fe-oxy) fill the voids between hydrohetaerolite and rhodochrosite. Inset shows barely perceptible colloform textures of the hydrohetaerolite, magnified from the area in the box. ...
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Image
Reflectance spectra of Pb and Zn ‘oxide’ minerals: 1, hetaerolite;2, hydroh...
Published: 01 May 2007
Fig. 3 Reflectance spectra of Pb and Zn ‘oxide’ minerals: 1, hetaerolite;2, hydrohetaerolite; 3, franklinite;4, coronadite; 5, zincite; 6, minium;7, plattnerite; 8, bindheimite;9, wulfenite; 10, vanadinite;11, descloizite; 12, gahnite.
Image
Reflectance spectra of Pb and Zn ‘oxide’ minerals: 1, hetaerolite;2, hydroh...
Published: 01 May 2007
Fig. 3 Reflectance spectra of Pb and Zn ‘oxide’ minerals: 1, hetaerolite;2, hydrohetaerolite; 3, franklinite;4, coronadite; 5, zincite; 6, minium;7, plattnerite; 8, bindheimite;9, wulfenite; 10, vanadinite;11, descloizite; 12, gahnite.
Image
Differential X-ray diffraction pattern from those of untreated ( A ) and NH...
Published: 01 November 2003
F igure 11. Differential X-ray diffraction pattern from those of untreated ( A ) and NH 2 OH·HCl-treated ( B ) manganate-rich sample (sample 2-2). Bars at the bottom indicate the peak positions of hydrohetaerolite (JCPDS 09-0459). * = unidentified soluble mineral, C = chlorite, K = K-feldspar
Journal Article
Published: 01 January 2019
European Journal of Mineralogy (2019) 31 (1): 183–192.
... is identified by the combination of the dominant A- and B-cations. Moreover, the present nomenclature redefines the ideal formulae of titanomaghemite, cuprorhodsite, malanite, maghemite, filipstadite, tegengrenite, rhodostannite, toyohaite and xingzhongite as well as discredits “iwakiite”, “hydrohetaerolite...
FIGURES
Image
BSE images and X-ray maps of weathered manganoan calcite (sample 2–2). ( a ...
Published: 01 November 2003
F igure 9. BSE images and X-ray maps of weathered manganoan calcite (sample 2–2). ( a ) Manganoan calcite replaced by rims of secondary minerals. ( b ) Magnified image of the box in a showing aggregates and a grid of hydrohetaerolite in the outer rim, and smithsonite replacement of manganoan
Journal Article
Journal: Economic Geology
Published: 01 January 1964
Economic Geology (1964) 59 (1): 54–78.
..., hydrohetaerolite, birnessite and coronadite. Impurities include quartz, muscovite, montmorillonite-illite, goethite and calcite.The oxide ores are secondary in origin and have formed by replacement of rhodochrosite, replacement of earlier secondary oxides, cavity filling, and residual accumulation. Cryptomelane...
Journal Article
Journal: Economic Geology
Published: 01 January 1960
Economic Geology (1960) 55 (1): 1–55.
... to be persistently supergene: groutite, hydrohausmannite, lithiophorite, rancieite, hetaerolite, hydrohetaerolite, chalcophanite, crednerite, woodruffite, and wad. Another group of oxides appears to have been formed only by hypogene processes: manganosite, hausmannite, pyrochroite, bixbyite, galaxite, jacobsite...
Journal Article
Published: 01 May 2007
Geochemistry: Exploration, Environment, Analysis (2007) 7 (2): 139–151.
...Fig. 3 Reflectance spectra of Pb and Zn ‘oxide’ minerals: 1, hetaerolite;2, hydrohetaerolite; 3, franklinite;4, coronadite; 5, zincite; 6, minium;7, plattnerite; 8, bindheimite;9, wulfenite; 10, vanadinite;11, descloizite; 12, gahnite. ...
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Image
F ig . 3. Images of supergene nonsulfide zinc minerals. a. Replacement of b...
Published: 01 June 2003
with coarse calcite, Whitetail Deer mine, Bisbee, Arizona, United States. l. Botryoidal hydrohetaerolite growing on euhedral, white hemimorphite, Wolftone mine, Colorado, United States.
Journal Article
Journal: Economic Geology
Published: 01 June 2003
Economic Geology (2003) 98 (4): 685–714.
... with coarse calcite, Whitetail Deer mine, Bisbee, Arizona, United States. l. Botryoidal hydrohetaerolite growing on euhedral, white hemimorphite, Wolftone mine, Colorado, United States. ...
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Journal Article
Published: 01 April 2003
Mineralogical Magazine (2003) 67 (2): 205–217.
... ZnAl 2 O 4 Stannite Cu 2 FeSnS 4 Goethite α-FeO(OH) Symplesite Fe 3 (AsO 4 ) 2 ·8H 2 O Goslarite ZnSO 4 ·7H 2 O Tenorite CuO Gratonite Pb 9 As 4 S 16 Tennantite (Cu,Ag,Fe,Zn) 12 As 4 S 13 Hematite Fe 2 O 3 Tetrahedrite Cu 12 Sb 4 S 13 Hydrohetaerolite Zn 2 Mn 4 O 8...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 May 2000
Economic Geology (2000) 95 (3): 607–620.
... iron [(Fe 67 Mn 33 )OOH], coronadite, hollandite, hetaerolite, hydrohetaerolite, ZnMnO 3 , and bixbyite. Mn minerals of high oxidation state (pyrolusite and psilomelane) are the most dominant, while those of low oxidation state are only rare constituents. Goethite and hematite are intergrown with Mn...
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Journal Article
Journal: Economic Geology
Published: 01 June 2003
Economic Geology (2003) 98 (4): 797–818.
... and hydrohetaerolite formed as a result of supergene weathering of the willemite ( Muller 1972 ). Gangue minerals include manganocalcite, dolomite, and quartz. Manganocalcite is intimately associated with willemite occurrences in the Flinders Ranges and occurs along mineralizing structures such as the Beltana...
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Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 49 (1): 341–428.
..., including gahnite (ZnAl 2 O 4 ), hydrohetaerolite (Zn 2 Mn 4 O 8 .H 2 O), plumbo-jarosite (Pb 0.5 Fe 3 (SO 4 ) 2 (OH) 6 ), sphalerite (ZnS), and pyromorphite. Interestingly, most crystallites had a nanometer size, and were never uniformly distributed but aggregated in micrometer-sized aggregates, similarly...
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Published: 01 January 2007
DOI: 10.1130/2007.2422(13)
... are pyrolusite MnO 2 , ramsdellite MnO 2 , cryptomelane K(Mn 4+ , Mn 2+ ) 8 O 16 , hollandite (Ba, K)Mn 8 O 16 , coronadite PbMn 8 O 16 , and hydrohetaerolite Zn 2 Mn 4 O 8 ·(H 2 O) ( Liakopoulos et al., 2001 ). The ores, with manganese grades up to 60 wt% MnO, have high contents in lead (up to 3.4 wt% Pb...