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Bianchite

A valid IMA mineral species - grandfathered
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Zn(SO4) · 6H2O
Colour:
White, Yellowish; colourless in transmitted light.
Lustre:
Vitreous
Hardness:
2½
Specific Gravity:
2.03 - 2.07
Crystal System:
Monoclinic
Member of:
Hexahydrite Group
Name:
Named in 1930 by C. Andeatta in honor of Angelo Bianchi (20 December 1892, Casalpusterlengo, Italy - 24 September 1970, Padova, Italy), Italian mineralogist at the National Research Council (CNR) and the University of Padova.
Type Locality:
ⓘRaibl Mines, Cave del Predil, Tarvisio, Udine Province, Friuli Venezia Giulia, Italy
Hexahydrite Group.

May originate due to the dehydration ofgoslarite.
Dehydration of bianchite may lead toboyleite.


Unique Identifiers

Classification of Bianchite

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
Dana 8th ed.:
29.6.8.2

29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
Hey's CIM Ref.:
25.5.13

25 : Sulphates
5 : Sulphates of Zn and Hg

Mineral Symbols
Transparency:
Transparent
Colour:
White, Yellowish; colourless in transmitted light.
Hardness:
2½ onMohs scale
Density:
2.03 - 2.07 g/cm3 (Measured)    2.00 g/cm3 (Calculated)

Optical Data of Bianchite
Surface Relief:
Moderate
Dispersion:
r > v weak
Optical Extinction:
Y = b; X ∧ c = –26°.

Chemistry of Bianchite

Crystallography of Bianchite
Place of Conservation of Type Material:
Istituto di Mineralogia e Petrografia dell’Università, Padova, Italy, number 1039/1774.

Other Language Names for Bianchite

Relationship of Bianchite to other Species
Other Members of Hexahydrite Group:
ChvaleticeiteMn(SO4) · 6H2OMon. 2/m :B2/b
FerrohexahydriteFeSO4 · 6H2OMon. 2/m :B2/b
HexahydriteMgSO4 · 6H2OMon. 2/m :P2/m
MoorhouseiteCo(SO4) · 6H2OMon. 2/m :B2/b
NickelhexahydriteNi(SO4) · 6H2OMon. 2/m :B2/b

Common AssociatesMon. 2/m :P21/m7.CB.02VoudourisiteCdSO4 · H2OMon. 2/m :P21/m7.CB.05SzmikiteMnSO4 · H2OMon. 2/m :B2/b7.CB.05SzomolnokiteFeSO4 · H2OMon. 2/m :B2/b7.CB.05CobaltkieseriteCoSO4 · H2OMon. 2/m :B2/b7.CB.05DwornikiteNi(SO4) · H2OMon. 2/m :B2/b7.CB.05KieseriteMgSO4 · H2OMon. 2/m :B2/b7.CB.05Poitevinite(Cu,Fe)SO4 · H2OTric.1 :P17.CB.05GunningiteZnSO4 · H2OMon. 2/m :B2/b7.CB.07SanderiteMgSO4 · 2H2OOrth. 222 :P2121217.CB.10BonattiteCuSO4 · 3H2OMon.m :Bb7.CB.12BelogubiteCuZn(SO4)2 · 10H2OTric.1 :P17.CB.15DrobeciteCdSO4 · 4H2OMon. 2/m :P21/m7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2OMon. 2/m7.CB.15CranswickiteMgSO4 · 4H2OMon.m :Bb7.CB.15RozeniteFeSO4 · 4H2OMon. 2/m :P21/b7.CB.15StarkeyiteMgSO4 · 4H2OMon. 2/m :P21/b7.CB.15IlesiteMn2+(SO4) · 4H2OMon. 2/m7.CB.15BoyleiteZnSO4 · 4H2OMon. 2/m :P21/b7.CB.20SiderotilFeSO4 · 5H2OTric.7.CB.20JôkokuiteMnSO4 · 5H2OTric.1 :P17.CB.20PentahydriteMgSO4 · 5H2OTric.1 :P17.CB.20ChalcanthiteCuSO4 · 5H2OTric.1 :P17.CB.25ChvaleticeiteMn(SO4) · 6H2OMon. 2/m :B2/b7.CB.25NickelhexahydriteNi(SO4) · 6H2OMon. 2/m :B2/b7.CB.25HexahydriteMgSO4 · 6H2OMon. 2/m :P2/m7.CB.25MoorhouseiteCo(SO4) · 6H2OMon. 2/m :B2/b7.CB.25FerrohexahydriteFeSO4 · 6H2OMon. 2/m :B2/b7.CB.30RetgersiteNiSO4 · 6H2OTet. 422 :P412127.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2OMon. 2/m :P21/b7.CB.35MelanteriteFe2+(H2O)6SO4 · H2OMon. 2/m :P21/b7.CB.35Alpersite(Mg,Cu)(SO4) · 7H2OMon. 2/m :P21/b7.CB.35BieberiteCoSO4 · 7H2OMon. 2/m :P2/m7.CB.35BoothiteCuSO4 · 7H2OMon. 2/m :P21/b7.CB.35MallarditeMnSO4 · 7H2OMon. 2/m :P2/m7.CB.40EpsomiteMgSO4 · 7H2OOrth. 222 :P2121217.CB.40GoslariteZnSO4 · 7H2OOrth. 222 :P2121217.CB.40MorenositeNiSO4 · 7H2OOrth. 222 :P2121217.CB.45Meta-alunogenAl2(SO4)3 · 12H2OOrth.7.CB.45AlunogenAl2(SO4)3 · 17H2OTric.1 :P17.CB.50AluminocoquimbiteAl2Fe2(SO4)6(H2O)12 · 6H2OTrig.3m(32/m) :P31c7.CB.50Lazaridisite3CdSO4 · 8H2OMon. 2/m :B2/b7.CB.52PararaisaiteCuMg[Te6+O4(OH)2] · 6H2OMon. 2/m :P21/b7.CB.55ParacoquimbiteFe4(SO4)6(H2O)12 · 6H2OTrig.3 :R37.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2OOrth.mmm(2/m2/m2/m) :Pnma7.CB.55RaisaiteCuMg[Te6+O4(OH)2] · 6H2OMon. 2/m :B2/b7.CB.55CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2OTrig.3m(32/m) :P31c7.CB.57CaichengyuniteFe2+3Al2(SO4)6 · 30H2OMon.7.CB.60KorneliteFe2(SO4)3 · 7H2OMon. 2/m :P21/m7.CB.65QuenstedtiteFe2(SO4)3 · 11H2OTric.1 :P17.CB.70LauseniteFe2(SO4)3 · 5H2OMon. 2/m :P21/m7.CB.75RömeriteFe2+Fe3+2(SO4)4 · 14H2OTric.1 :P17.CB.75LishizheniteZnFe2(SO4)4 · 14H2OTric.1 :P17.CB.80RansomiteCuFe2(SO4)4 · 6H2OMon. 2/m :P21/b7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m :P21/b7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 :P27.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2OMon. 2/m :P21/b7.CB.85Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4 · 22H2OMon. 27.CB.85PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m :P21/b7.CB.85BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m :P21/b7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2OMon. 2/m :P21/b7.CB.90MeridianiiteMgSO4 · 11H2OTric.1 :P1

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    • References for BianchiteMineralogical Society of America - ...Ashley et al. (1999)R Bottrrill
    Austria
     
    Niedermayr et al. (1995)
    Bolivia
     
    Joan Martinez-Bofill et al. (2021)
    Bulgaria
     
    Mineralogical Society of America - ...
    Canada
     
    Anderson et al. (2012)Rocks & Min 81:1 pp 24-32Gait et al. (1990)
    Cape Verde
     
    Silva et al. (2019)
    Finland
     
    I. Mikkola Collection
    Germany
     
    Mineralogical Society of America - ...Weiß (1990)Jambor et al. (1962)+1 other referenceWeiß (1990)SEM-EDS and XRD by Joy Desor and ...
    Greece
     
    Gröbner (2001)Krause et al. (2006)Triantafyllidis et al. (2007)
    Hungary
     
    Szakáll S.
    Italy (TL)
     
    Palache et al. (1951)Stara et al. (1996)Fiori et al. (1999)Forti P. (1985)Anderson et al. (2012)Bazzoni C. et al. (2001)Bazzoni et al. (2001)
    Norway
     
    Raade (1970)+2 other references
    Pacific Ocean
     
    Friesen et al. (1995)
    Poland
     
    Mineralogical Society of America - ...Cabała et al. (2008)Bril et al. (2008)
    Romania
     
    Buzatu et al. (2012)Januszewska et al. (2023)
    Russia
     
    Bortnikova et al. (2017)E. Shcherbakova et al. : "The rarest ...Zhdanov Yu.Ya. (1998)Ерохин et al. (2008)Kasatkin et al. (2014)
    Switzerland
     
    XRD Analyses by N. Meisser+1 other reference
    UK
     
    Palumbo-Roe et al. (2009)+1 other reference
    USA
     
    Graeme (1981)+1 other referenceAnthony et al. (1995)Adams (2017)Eckel et al. (1997)Eckel et al. (1997)Eckel et al. (1997)Eckel et al. (1997)Mineralogical Society of America - ...Hendricks (1960)+2 other referencesRocks & Min.: 6:26+4 other referencesDietrich (1990)
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