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boyleite

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Journal Article
Published: 01 November 2012
American Mineralogist (2012) 97 (11-12): 1905–1914.
...Jennifer L. Anderson; Ronald C. Peterson; Ian Swainson Abstract Deuterated boyleite ZnSO 4 ·4D 2 O, was synthesized and the atomic structure, including D positions, was successfully refined in a combined histogram neutron diffraction refinement. The cell dimensions for boyleite are a = 5.9144(2), b...
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Schematic diagram of the bond network in boyleite, as determined by the combined histogram powder neutron diffraction refinement of the structure of deuterated boyleite ZnSO4·4D2O. D···O distances (Å) are presented as dashed lines with arrows indicating the O-acceptor atom. Atoms D3a and D2b are considered to be involved in bifurcated hydrogen bonding.
Published: 01 November 2012
Figure 6 Schematic diagram of the bond network in boyleite, as determined by the combined histogram powder neutron diffraction refinement of the structure of deuterated boyleite ZnSO 4 ·4D 2 O. D···O distances (Å) are presented as dashed lines with arrows indicating the O-acceptor atom. Atoms D3a
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The equilibrium phase diagram for the ZnSO4·H2O system. The dashed lines are reproduced from Chou and Seal (2005) and references therein. Symbols A through E indicate the conditions of the glove-box relative-humidity chamber dehydration experiments. At A (33% RH) goslarite dehydrated to boyleite and remained a single phase for 11 days before dehydrating to gunningite. At B (43% RH) goslarite dehydrated to boyleite and remained a single phase for 70 days before dehydrating to gunningite. At C (54% RH) goslarite dehydrated to bianchite; at D (59% RH) a mixture of goslarite and bianchite remained in the sample after one year; and at E (69% RH) goslarite remained after one year. The arrow represents conditions of the in situ diffraction experiment (57–26% RH, 37 °C) where goslarite dehydrated rapidly to a mixture of bianchite, boyleite, and gunningite and shown in Figure 3.
Published: 01 November 2012
dehydrated to boyleite and remained a single phase for 11 days before dehydrating to gunningite. At B (43% RH) goslarite dehydrated to boyleite and remained a single phase for 70 days before dehydrating to gunningite. At C (54% RH) goslarite dehydrated to bianchite; at D (59% RH) a mixture of goslarite
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Infrared reflectance spectra of deuterated samples of boyleite, bianchite, and goslarite.
Published: 01 November 2012
Figure 4 Infrared reflectance spectra of deuterated samples of boyleite, bianchite, and goslarite.
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Lime green bobcookite with pink boyleite; field of view = 6 mm.
Published: 01 June 2015
F ig . 1. Lime green bobcookite with pink boyleite; field of view = 6 mm.
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Three four-membered [Zn2+(SO4)]2·8H2O rings in boyleite consisting of two sulfate tetrahedra and two zinc-containing octahedra sharing corners. The four D2O molecules form part of the coordination of zinc. Deuterium atoms are shown as small spheres (Dowty 2011). Hydrogen bonding links these groups together.
Published: 01 November 2012
Figure 1 Three four-membered [Zn 2+ (SO 4 )] 2 ·8H 2 O rings in boyleite consisting of two sulfate tetrahedra and two zinc-containing octahedra sharing corners. The four D 2 O molecules form part of the coordination of zinc. Deuterium atoms are shown as small spheres ( Dowty 2011 ). Hydrogen
Journal Article
Published: 01 June 2015
Mineralogical Magazine (2015) 79 (3): 695–714.
...F ig . 1. Lime green bobcookite with pink boyleite; field of view = 6 mm. ...
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Schematic diagram showing reversible hydration/dehydration phase changes that occur in the ZnSO4–H2O system. Zn end-member boyleite, without metal substitution, does not have a defined stability field in the ZnSO4–H2O equilibrium phase diagram (Chou et al., 2002). Unit-cell dimensions are from Gaines et al. (1997).
Published: 01 June 2005
F ig . 1. Schematic diagram showing reversible hydration/dehydration phase changes that occur in the ZnSO 4 –H 2 O system. Zn end-member boyleite, without metal substitution, does not have a defined stability field in the ZnSO 4 –H 2 O equilibrium phase diagram ( Chou et al. , 2002 ). Unit-cell
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Results of the in situ diffraction experiment in a relative humidity and temperature controlled chamber (Peterson and Grant 2005). A sample of finely ground goslarite (indicated as 7) was dusted onto a low-background sample holder and placed into the chamber at 37 °C. (a) The initial scan (t = 0:00) shows a single phase of goslarite and subsequent histograms show the dehydration of goslarite and the growth of bianchite (6). (b) Bianchite growth continues as boyleite (4) and gunningite (1) peaks emerge. (c) Gunningite grows at the expense of goslarite and bianchite. The relative humidity in the chamber was lowered from 57 to 26% relative humidity at 37 °C during the course of the 2.5 h long experiment.
Published: 01 November 2012
scan ( t = 0:00) shows a single phase of goslarite and subsequent histograms show the dehydration of goslarite and the growth of bianchite (6). ( b ) Bianchite growth continues as boyleite (4) and gunningite (1) peaks emerge. ( c ) Gunningite grows at the expense of goslarite and bianchite
Journal Article
Published: 01 June 2005
Mineralogical Magazine (2005) 69 (3): 259–271.
...F ig . 1. Schematic diagram showing reversible hydration/dehydration phase changes that occur in the ZnSO 4 –H 2 O system. Zn end-member boyleite, without metal substitution, does not have a defined stability field in the ZnSO 4 –H 2 O equilibrium phase diagram ( Chou et al. , 2002 ). Unit-cell...
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Journal Article
Published: 01 January 2000
Reviews in Mineralogy and Geochemistry (2000) 40 (1): 303–350.
...     pentahydrite MgSO 4 ·5H 2 O     jôkokuite MnSO 4 ·5H 2 O     siderotil FeSO 4 ·5H 2 O Rozenite Group (monoclinic, P 2 1 / n ) 6     rozenite FeSO 4 ·4H 2 O     starkeyite MgSO 4 ·4H 2 O     ilesite MnSO 4 ·4H 2 O     aplowite CoSO 4 ·4H 2 O     boyleite ZnSO 4 ·4H 2 O...
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Water molecule H-O and H-bond distances. Small gray circles represent data bonds lengths for M2+SO4·nH2O minerals from the following papers: Angel and Finger (1988), Bacon and Titterton (1975), Bargouth and Will (1981), Baur and Rolin (1972), Baur (1964a, 1964b), Calleri et al. (1984), Elerman (1988), Gerkin et al. (1988), Hawthorne et al. (1987), Iskhakova et al. (1991), Kellersohn (1992), Kellersohn et al. (1993a, 1993b), Ptasiewicz-Bak et al. (1993), Wildner and Giester (1991), Zahrobsky and Baur (1965), Zalkin et al. (1964). Small black circles represent the bond lengths of crystalline hydrates studied by neutron diffraction [cited in Chiari and Ferraris (1982)]. The regression lines for these neutron data sets are presented as a solid line. The H-bonds for boyleite and ilesite determined by this study fall close to the line determined by Ferraris based on structures studied using neutron diffraction. The positions of the hydrogen atoms determined by neutron diffraction in the present study are a better estimate than those previously determined for the same minerals by X-ray diffraction analysis (Blake et al. 2001; Held and Bohaty 2002).
Published: 01 November 2012
circles represent the bond lengths of crystalline hydrates studied by neutron diffraction [cited in Chiari and Ferraris (1982) ]. The regression lines for these neutron data sets are presented as a solid line. The H-bonds for boyleite and ilesite determined by this study fall close to the line determined
Journal Article
Published: 01 October 2014
Mineralogical Magazine (2014) 78 (5): 1265–1286.
... minerals were identified by powder X-ray diffraction (PXRD) analysis. The discovery of boyleite [(Zn,Mg)SO 4 ·4H 2 O] in the Poruba Member of the Lazy Mining Plant of the Karviná Mine ( Welser et al. , 2010 ) is controversial because the mineral was only identified by PXRD. This mineral is isotypic...
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Journal Article
Published: 01 February 2003
The Canadian Mineralogist (2003) 41 (1): 83–90.
... will be those that have their local bond-valence requirements most closely satisfied, and identified four such clusters. The [ M 2 ( T O 4 ) 2 ϕ 8 ] cluster in bobjonesite is one of these clusters. This cluster also occurs in the structure of the minerals of the rozenite group: aplowite, boyleite, ilesite...
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Journal Article
Published: 01 October 2016
Mineralogical Magazine (2016) 80 (6): 949–958.
..., gypsum, kobyashevite, ktenasite, mimetite, schulenbergite, smithsonite and another potentially new Cu selenite-sulfate. Other secondary minerals identified in the general assemblage are antlerite, boyleite, brianyoungite, devilline, hydrozincite, lahnsteinite, osakaite and posnjakite. Pauladamsite...
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Journal Article
Published: 01 November 2013
American Mineralogist (2013) 98 (11-12): 1943–1965.
..., aplowite, and boyleite) are based on clusters, which might suggest that their Mössbauer parameters should be similar to those of halotrichite, metavoltine, and coquimbite. Each cluster is composed of two tetrahedra each sharing two corners with two octahedra; the resultant formula is M 2 (SO 4 ) 2 O 8...
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Journal Article
Published: 01 May 2016
American Mineralogist (2016) 101 (5): 1240–1243.
... as efflorescent crusts on the surfaces of mine walls. Associated minerals include boyleite, chalcanthite, dietrichite, gypsum, hexahydrite, johannite, pickeringite, and rozenite. Bobcookite occurs as irregular columnar crude prismatic crystals, often more or less curved and sometimes composite. Prisms are up to 2...
Journal Article
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1307–1324.
..., blödite, bobjonesite, bonattite, boyleite, brochantite, bukovskýite, burkeite, butlerite, caledonite, campigliaite, carraraite, celestine, chalcanthite, chenite, christelite, cuprocopiapite, cyanochroite, d’ansite, despujolsite, devilline, dietrichite, dorallcharite, epsomite, ettringite, ferrinatrite...
Journal Article
Published: 01 November 2016
American Mineralogist (2016) 101 (11): 2570–2573.
... association with atacamite, blödite, brochantite, chalcanthite, dickite, gerhardtite, gypsum, hexahydrite, johannite, manganoblödite, natrozippeite, and tamarugite. Other secondary minerals in the general assemblage include belakovskiite, bluelizardite, boyleite, cobaltoblödite, copiapite, coquimbite...
Journal Article
Published: 01 June 2007
The Canadian Mineralogist (2007) 45 (3): 457–469.
... . Walenta , K. ( 1978 ): Boyleit, ein neues Sulfatmineral von Kropback im südlichen Schwarzwald . Chem. Erde 37 , 73 – 79 . Wildner , M. & Giester , G. ( 1991 ): The crystal structures of kieserite-type compounds. I. Crystal structures of Me(II)SO 4 H 2 O (Me= Mn, Fe, Co, Ni...
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