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Bechererite

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Karl Becherer
Formula:
Zn7Cu(OH)13[(SiO(OH)3(SO4)]
Colour:
Light green, Ice Blue, Colourless
Lustre:
Vitreous
Hardness:
2 - 3
Crystal System:
Trigonal
Name:
Named in honour of Dr. Karl Becherer (17.4.1926 - 17.2.2014), mineralogist at the University of Vienna, Austria.
There is a new secondary slag phase closely related to bechererite, but without SiO4 groups (U. Kolitsch, 2010; to be published).


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Classification of BechereriteHide

Approved
Approval Year:
1994
7.DD.55

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
Dana 7th ed.:
4.0.0.0

Physical Properties of BechereriteHide

Vitreous
Colour:
Light green, Ice Blue, Colourless
Streak:
White
Hardness:
2 - 3 on Mohs scale

Optical Data of BechereriteHide

Type:
Uniaxial (-)
RI values:
nω = 1.705 nε = 1.611
Max Birefringence:
δ = 0.094
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of BechereriteHide

Formula:
Zn7Cu(OH)13[(SiO(OH)3(SO4)]
IMA Formula:
Zn7Cu(OH)13[SiO(OH)3SO4]

Crystallography of BechereriteHide

Crystal System:
Trigonal
Class (H-M):
3 - Pyramidal
Space Group:
P3
Cell Parameters:
a = 8.319(2) Å, c = 7.377(1) Å
Ratio:
a:c = 1 : 0.887
Unit Cell V:
442.13 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Hemimorphic elongate trigonal pyramids.

Type Occurrence of BechereriteHide

Synonyms of BechereriteHide

Other Language Names for BechereriteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Hydrocerussite5 photos of Bechererite associated with Hydrocerussite on mindat.org.
Susannite4 photos of Bechererite associated with Susannite on mindat.org.
Linarite4 photos of Bechererite associated with Linarite on mindat.org.
Brianyoungite3 photos of Bechererite associated with Brianyoungite on mindat.org.
Hemimorphite3 photos of Bechererite associated with Hemimorphite on mindat.org.
Cerussite2 photos of Bechererite associated with Cerussite on mindat.org.
Leadhillite2 photos of Bechererite associated with Leadhillite on mindat.org.
Steverustite1 photo of Bechererite associated with Steverustite on mindat.org.
Caledonite1 photo of Bechererite associated with Caledonite on mindat.org.
Namuwite1 photo of Bechererite associated with Namuwite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2OMon. m
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2OMon. m : Pm
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2OMon. m : Pm
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.20KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2OMon.
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2OTric.
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2OMon.
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OOrth. mm2 : Pca21
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OMon. 2/m : B2/b
7.DD.30NiedermayriteCdCu4(SO4)2(OH)6 · 4H2OMon. 2/m : P21/m
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6·4H2O Mon. 2/m : P21/b
7.DD.35Carrboydite[(Ni1-xAlx)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35Hydrohonessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OHex.
7.DD.35MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : R3m
7.DD.35Mountkeithite[(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig.
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1
7.DD.35WoodwarditeCu1-xAlx(OH)2[SO4]x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(OH)2[SO4]x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2•6H2OHex.
7.DD.35NikischeriteFe2+6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig.
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.40Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.45MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2OMon. 2/m
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2OMon. 2/m : P21/b
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2OMon. 2/m : P21/b
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2OMon. 2 : P21
7.DD.75Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2OMon.
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12·3H2OMon.
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig.
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl·6H2OHex.
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2OOrth. mm2 : Cmc21

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BechereriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mineralogical Record: 27: 393.
Giester, G. and Rieck, B. (1996): Bechererite, (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2, a novel mineral species from the Tonopah-Belmont mine, Arizona: American Mineralogist 81, 244-248.
Hoffmann, Ch., Armbruster, Th., Giester, G (1997): Acentric structure (P3) of bechererite, Zn7Cu(OH)13[SiO(OH)3SO4]: American Mineralogist 82, 1014-1018.
Rust, S.A., Bell, R. & Green, D.I. (2003): The occurrence of bechererite in the British Isles. UK Journal of Mines and Minerals, 23, 37-38.

Internet Links for BechereriteHide

Localities for BechereriteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • New South Wales
    • Yancowinna Co.
Elliott, P. (1997): Minerals of the slags from Broken Hill, New South Wales. Australian J. of Mineralogy 3 (1), 77-83.
M.E. Ciriotti, 2006 (EDS- and XRD-analysed)
Austria
 
  • Lower Austria
    • Waldviertel
      • Geras
        • Kottaun
Kolitsch, U. (2015): 1938) Almandin, Anglesit, Bechererit(?), Brianyoungit, Chamosit, Fluorapatit, Ilmenit, Kassiterit, Segnitit, Stannit und Zirkon vom Arzberg bei Kottaun, Geras im Waldviertel, Niederösterreich. P. 250 in Niedermayr, G. et al. (2015): Neue Mineralfunde aus Österreich LXIV. Carinthia II, 205./125., 207-280.
Germany
 
  • North Rhine-Westphalia
    • Siegerland
      • Wilnsdorf
Mineralien-Welt 17, (4), 36-37
Italy
 
  • Liguria
    • Genova Province
      • Genova
        • Varenna Valley
Rivista Mineralogica Italiana, 22 (3), 39-41.
Romania
 
  • Bihor Co.
    • Brusturi
G.Koller,2009
UK
 
  • England
    • Cornwall
      • Mount's Bay District
        • Perranuthnoe
Bechererite from Leadhills, South Lanarkshire and the Charlotte United Mines, Perranuthnoe, Cornwall. UK Journal of Mines & Minerals pp7-8, No28, 2007.
    • Cumbria
      • Caldbeck Fells
UKJMM.23.2003
        • Roughton Gill
Pluth, J. J., Steele, I. M., Kampf, A. R. & Green, D. I. (2005): Redgillite, Cu6(OH)10(SO4)•H2O, a new mineral from Caldbeck Fells, Cumbria, England: description and crystal structure. Mineralogical Magazine, 69, 973-980.
Tindle, A.G. (2008) Minerals of Britian and Ireland
    • Strathclyde
      • South Lanarkshire
        • Leadhills
          • Mine Hill-Broad Law
Bechererite From Leadhills, South Lanarkshire and the Charlotte United Mines, Perranuthnoe, Cornwall. UK Journal of Mines and Minerals pp7-8, No28, 2007.
  • Wales
    • Ceredigion
      • Ceulanymaesmawr
        • Talybont
          • Nant-y-Moch Reservoir area
UKJMM.23.2003
UKJMM.23.2003
      • Trefeirig
        • Pen-bont Rhydybeddau
UKJMM.23.2003
      • Upper Llanfihangell-y-Creuddyn
        • Pontrhydygroes
UKJMM 17
    • Powys
      • Llangynog
S Rust collection
      • Machynlleth
        • Dylife
UKJMM.23.2003
USA (TL)
 
  • Arizona
    • Maricopa Co.
      • Big Horn Mts
        • Osborn District
          • Tonopah
            • Belmont Mountain
Giester, G. and B. Rieck (1996) Bechererite, (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2, a novel mineral species from the Tonopah-Belmont mine, Arizona, American Mineralogist: 81: 244-248. Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 1.
Mineral and/or Locality  
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