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Krauskopfite

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Formula:
BaSi2O5 · 3H2O
System:
Monoclinic
Colour:
Colourless
Lustre:
Sub-Vitreous
Hardness:
4
This page provides mineralogical data about Krauskopfite.

Classification of Krauskopfite

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
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Type Occurrence of Krauskopfite

Year of Discovery:
1964

Physical Properties of Krauskopfite

Sub-Vitreous
Colour:
Colourless
Hardness (Mohs):
4

Crystallography of Krauskopfite

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

Optical Data of Krauskopfite

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 Krauskopfite

Formula:
BaSi2O5 · 3H2O
Essential elements:
All elements listed in formula:
Common Impurities:
Ti,Al,Fe,Mn,Mg,Ca,Sr,K

Relationship of Krauskopfite to other Species

9.DH.05LeucophaniteNaCaBeSi2O6F
9.DH.10OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2O
9.DH.15HaradaiteSrVSi2O7
9.DH.15SuzukiiteBaVSi2O7
9.DH.20BatisiteBaNaNaTi2(Si4O12)O2
9.DH.20Shcherbakovite(K,Ba)KNa(Ti,Nb)2(Si4O12)O2
9.DH.25TaikaniteSr3BaMn22+(Si4O12)O2
9.DH.35Balangeroite(Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40
9.DH.35GageiteMn21(Si4O12)2O3(OH)20
9.DH.40AenigmatiteNa2Fe52+Ti(Si6O18)O2
9.DH.40DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
9.DH.40Høgtuvaite(Ca,Na)2(Fe2+,Fe3+,Ti)6[O2|Be(Si,Al)5O18]
9.DH.40KrinoviteNa2Mg4Cr23+(Si6O18)O2
9.DH.40Makarochkinite(Ca,Na)2Fe42+Fe3+Ti[O2|BeAlSi4O18]
9.DH.40RhöniteCa2(Mg,Fe2+,Fe3+,Ti)6[O2|(Si,Al)6O18]
9.DH.40Serendibite(Ca,Na)2(Mg,Fe2+)3(Al,Fe3+)3[O2|(Si,Al,B)6O18]
9.DH.40WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]
9.DH.40WilkinsoniteNa2Fe42+Fe23+(Si6O18)O2
9.DH.45Sapphirine(Mg,Fe)4-xAl4+x[Al4+xSi2-xO18]O2
9.DH.50Khmaralite(Mg,Al,Fe)16[(Al,Si,Be)12O36]O4
9.DH.55Surinamite(Mg,Fe)3Al4BeSi3O16
9.DH.60Deerite(Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5
9.DH.65HowieiteNa(Fe,Mn)10(Fe,Al)2Si12O31(OH)13
9.DH.65Taneyamalite(Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44
9.DH.70JohninnesiteNa2Mn92+Mg7(OH)8[AsO4]2[Si6O17]2
9.DH.75AgrelliteNaCa2Si4O10F
14.7.1SanborniteBa2(Si4O10)
14.7.3WalstromiteBaCa2(Si3O9)
14.7.4MacdonalditeBaCa4Si16O36(OH)2 · 10H2O
14.7.5EricssoniteBaMn22+Fe3+(Si2O7)O(OH)
14.7.6Ericssonite-2OBaMn22+Fe3+(Si2O7)O(OH)
14.7.7GillespiteBaFe2+[Si4O10]
14.7.8AndrémeyeriteBaFe22+(Si2O7)
14.7.9PellyiteBa2Ca(Fe,Mg)2Si6O17
14.7.10TaikaniteSr3BaMn22+(Si4O12)O2
14.7.11WillemiteZn2SiO4
14.7.12HemimorphiteZn4Si2O7(OH)2 · H2O
14.7.13ZincsiliteZn3(Si4O10)(OH)2 · 4H2O
14.7.14HardystoniteCa2Zn(Si2O7)
14.7.15PetedunniteCa(Zn,Mn2+,Mg,Fe2+)Si2O6
14.7.16ClinohedriteCaZn(SiO4) · H2O
14.7.17JunitoiteCaZn2Si2O7 · H2O
14.7.18LarsenitePbZnSiO4
14.7.19EsperitePbCa2Zn3(SiO4)3
14.7.20HodgkinsoniteMn2+Zn2(SiO4)(OH)2
14.7.21GerstmanniteMnMgZn(SiO4)(OH)2
14.7.22GageiteMn21(Si4O12)2O3(OH)20
14.7.23FranklinfurnaceiteCa2Fe3+Mn32+Mn3+(Zn2Si2O10)(OH)8

Other Names for Krauskopfite

Name in Other Languages:

Other Information

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 Krauskopfite

Reference List:
American Mineralogist (1965): 50: 314-340.

American Mineralogist (1984): 69: 358.

Internet Links for Krauskopfite

Localities for Krauskopfite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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.
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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