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Krauskopfite

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Konrad B. Krauskopf
Formula:
BaSi2O5 · 3H2O
Colour:
Colourless
Lustre:
Sub-Vitreous
Hardness:
4
Crystal System:
Monoclinic
Name:
Named in honour of Konrad Bates Krauskopf (November 30, 1910 – May 4, 2003), professor of geochemistry at Stanford University and noted for his work in radioactive waste disposal.
This page provides mineralogical data about Krauskopfite.


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Classification of KrauskopfiteHide

Approved
9.DH.30

9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
74.3.4.2

74 : PHYLLOSILICATES Modulated Layers
3 : Modulated Layers with joined strips
14.7.2

14 : Silicates not Containing Aluminum
7 : Silicates of Ba, Sr and Zn

Physical Properties of KrauskopfiteHide

Sub-Vitreous
Colour:
Colourless
Hardness:

Optical Data of KrauskopfiteHide

Type:
Biaxial (-)
RI values:
nα = 1.574 nβ = 1.587 nγ = 1.599
2V:
Measured: 88° , Calculated: 86°
Max Birefringence:
δ = 0.025
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak

Chemical Properties of KrauskopfiteHide

Formula:
BaSi2O5 · 3H2O
Common Impurities:
Ti,Al,Fe,Mn,Mg,Ca,Sr,K

Crystallography of KrauskopfiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 8.46 Å, b = 10.62 Å, c = 7.83 Å
β = 94.53°
Ratio:
a:b:c = 0.797 : 1 : 0.737
Unit Cell V:
701.29 ų (Calculated from Unit Cell)

Type Occurrence of KrauskopfiteHide

Synonyms of KrauskopfiteHide

Other Language Names for KrauskopfiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Aurichalcite4 photos of Krauskopfite associated with Aurichalcite on mindat.org.
Rosasite2 photos of Krauskopfite associated with Rosasite on mindat.org.
Limonite2 photos of Krauskopfite associated with Limonite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.DH.05LeucophaniteNaCaBeSi2O6FOrth. 2 2 2 : P21 21 21
9.DH.10OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2OMon.
9.DH.15HaradaiteSrVSi2O7Orth.
9.DH.15SuzukiiteBaVSi2O7Orth.
9.DH.20BatisiteBaNaNaTi2(Si4O12)O2Orth.
9.DH.20Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2Orth.
9.DH.25TaikaniteSr3BaMn2+2(Si4O12)O2Mon.
9.DH.35Balangeroite(Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40Mon.
9.DH.35GageiteMn21(Si4O12)2O3(OH)20Mon. 2/m
9.DH.40AenigmatiteNa2Fe2+5Ti(Si6O18)O2Tric. 1 : P1
9.DH.40DorriteCa4(Mg3Fe3+9)O4(Si3Al8Fe3+O36)Tric.
9.DH.40HøgtuvaiteCa4[Fe2+6Fe3+6]O4[Si8Be2Al2O36]Tric. 1 : P1
9.DH.40KrinoviteNa2Mg4Cr3+2(Si6O18)O2Tric.
9.DH.40Makarochkinite(Ca,Na)2Fe2+4Fe3+Ti[O2|BeAlSi4O18]Tric. 1 : P1
9.DH.40RhöniteCa2(Mg,Fe2+,Fe3+,Ti)6[O2|(Si,Al)6O18]Tric. 1 : P1
9.DH.40SerendibiteCa4[Mg6Al6]O4[Si6B3Al3O36]Tric. 1 : P1
9.DH.40WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]Tric. 1 : P1
9.DH.40WilkinsoniteNa2Fe2+4Fe3+2(Si6O18)O2Tric. 1 : P1
9.DH.45SapphirineMg4(Mg3Al9)O4[Si3Al9O36]Mon. 2/m : P21/b
9.DH.50Khmaralite(Mg,Al,Fe)16[(Al,Si,Be)12O36]O4Mon. 2/m : P21/b
9.DH.55Surinamite(Mg,Fe)3Al4BeSi3O16Mon.
9.DH.60Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5Mon.
9.DH.65HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13Tric.
9.DH.65Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44Tric.
9.DH.70JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2Tric.
9.DH.75AgrelliteNaCa2Si4O10FTric.

Related Minerals - Dana Grouping (8th Ed.)Hide

74.3.4.1SanborniteBa2(Si4O10)Orth.
74.3.4.4Hogarthite(Na,K)2CaTi2Si10O26 · 8H2OMon. 2/m : B2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.7.1SanborniteBa2(Si4O10)Orth.
14.7.3WalstromiteBaCa2(Si3O9)Tric.
14.7.4MacdonalditeBaCa4Si16O36(OH)2 · 10H2OOrth.
14.7.5EricssoniteBaMn2+2Fe3+(Si2O7)O(OH)Mon. 2/m : B2/m
14.7.6Ericssonite-2OBaMn2+2Fe3+(Si2O7)O(OH)Orth.
14.7.7GillespiteBaFe2+Si4O10Tet.
14.7.8AndrémeyeriteBaFe2+2(Si2O7)Mon.
14.7.9PellyiteBa2Ca(Fe,Mg)2Si6O17Orth.
14.7.10TaikaniteSr3BaMn2+2(Si4O12)O2Mon.
14.7.11WillemiteZn2SiO4Trig. 3 : R3
14.7.12HemimorphiteZn4Si2O7(OH)2 · H2OOrth. mm2 : Imm2
14.7.13ZincsiliteZn3(Si4O10)(OH)2 · 4H2OMon.
14.7.14HardystoniteCa2Zn(Si2O7)Tet. 4 2m : P4 21m
14.7.15PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6Mon.
14.7.16ClinohedriteCaZn(SiO4) · H2OMon. m : Bb
14.7.17JunitoiteCaZn2Si2O7 · H2OOrth. mm2
14.7.18LarsenitePbZnSiO4Orth. mm2 : Pna21
14.7.19EsperitePbCa2Zn3(SiO4)3Mon. 2/m : P21/m
14.7.20HodgkinsoniteMn2+Zn2(SiO4)(OH)2Mon.
14.7.21GerstmanniteMnMgZn(SiO4)(OH)2Orth.
14.7.22GageiteMn21(Si4O12)2O3(OH)20Mon. 2/m
14.7.23FranklinfurnaceiteCa2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8Mon. 2 : B2

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 KrauskopfiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1965): 50: 314-340.
American Mineralogist (1984): 69: 358.

Internet Links for KrauskopfiteHide

Localities for KrauskopfiteHide

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.
Czech Republic
 
  • Moravia (Mähren; Maehren)
    • Moravia-Silesia Region
      • Bruntál
Fojt B.: Ba-minerály železnorudné mineralizace na stratiformním sulfidickém ložisku Horní Benešov v Nízkém Jeseníku. Minerál, 2013, roč. 21, č. 4, s. 311-312.; Mücke A., Dolníček Z., Fojt B., Hladíková J., Pudilová M., Reif J., Škoda R.: The Horní Benešov ore deposit in the Devonian Šternberk-Horní Benešov Belt, Jeseníky Mts, Czech Republic. Part II: Fe-ore occurrences. – Čas. Slez. Muz. Opava (A), 2013, 62, 215-254.
Iran
 
  • Esfahan Province (Isfahan Province; Aspadana Province)
    • Esfahan County (Isfahan County)
      • Esfahan (Isfahan)
Dr. H. J. Wilke and Sohne (Eppertshausen) specimen.
Japan
 
  • Shikoku Island
    • Ehime Prefecture
      • Iyo-gun
        • Tobe-cho
Hirowatari & Fukuoka (1981) Koubutsu-Gakkai Kou'en-Youshi, 113.
USA
 
  • California
    • Fresno Co.
      • Big Creek-Rush Creek District
Alfors, J.T., M.C. Stinson, R.A. Matthews & A. Pabst (1965), Seven new barium minerals from eastern Fresno County, California: American Mineralogist: 50: 318, 322-324; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 464.
          • Rush Creek
Alfors, J.T., M.C. Stinson, R.A. Matthews & A. Pabst (1965), Seven new barium minerals from eastern Fresno County, California: American Mineralogist: 50: 318, 322-324; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 464; Nickel & Nichols (1991).
    • Mariposa Co.
      • East Belt
        • Clearing House District
          • Clearing House
            • Trumbull Peak
    • Tulare Co.
      • Dumtah
American Mineralogist, Volume 69, pages 358-373, 1984; Mineralogical Record: 34(2): 159-166
Mineral and/or Locality  
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