Krauskopfite
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About Krauskopfite
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.
Classification of Krauskopfite
Approved
8/F.25-40
9.DH.30
9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
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
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
14 : Silicates not Containing Aluminum
7 : Silicates of Ba, Sr and Zn
Physical Properties of Krauskopfite
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.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak
Chemical Properties of Krauskopfite
Formula:
BaSi2O5 · 3H2O
Elements listed:
Common Impurities:
Ti,Al,Fe,Mn,Mg,Ca,Sr,K
Crystallography of Krauskopfite
Crystal System:
Monoclinic
Cell Parameters:
a = 8.46 Å, b = 10.62 Å, c = 7.83 Å
β = 94.53°
β = 94.53°
Ratio:
a:b:c = 0.797 : 1 : 0.737
Unit Cell V:
701.29 ų (Calculated from Unit Cell)
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0012050 | Krauskopfite | Coda A, dal Negro A, Rossi G (1967) The crystal structure of krauskopfite Atti della Accademia Nazionale dei Lincei 42 859-873 | 1967 | Rush Creek locality, Fresno County, California | 0 | 293 |
CIF Raw Data - click here to close
Type Occurrence of Krauskopfite
Synonyms of Krauskopfite
Other Language Names for Krauskopfite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Nickel-Strunz Grouping
9.DH. | Bavsiite | Ba2V2O2[Si4O12] | Tet. 4/m : I4/m |
9.DH.05 | Leucophanite | NaCaBeSi2O6F | Orth. 2 2 2 : P21 21 21 |
9.DH.10 | Ohmilite | Sr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2O | Mon. |
9.DH.15 | Haradaite | SrVSi2O7 | Orth. |
9.DH.15 | Suzukiite | BaVSi2O7 | Orth. |
9.DH.20 | Batisite | BaNaNaTi2(Si4O12)O2 | Orth. |
9.DH.20 | Shcherbakovite | (K,Ba)KNa(Ti,Nb)2(Si4O12)O2 | Orth. |
9.DH.25 | Taikanite | Sr3BaMn2+2(Si4O12)O2 | Mon. |
9.DH.35 | Balangeroite | (Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40 | Mon. |
9.DH.35 | Gageite | Mn21(Si4O12)2O3(OH)20 | Mon. 2/m |
9.DH.40 | Aenigmatite | Na4[Fe2+10Ti2]O4[Si12O36] | Tric. 1 : P1 |
9.DH.40 | Dorrite | Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36) | Tric. |
9.DH.40 | Høgtuvaite | Ca4[Fe2+6Fe3+6]O4[Si8Be2Al2O36] | Tric. 1 : P1 |
9.DH.40 | Krinovite | Na2Mg4Cr3+2(Si6O18)O2 | Tric. |
9.DH.40 | Makarochkinite | (Ca,Na)4[Fe2+8Fe3+2Ti2]O4[Si8Be2Al2O36] | Tric. 1 : P1 |
9.DH.40 | Rhönite | Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36] | Tric. 1 : P1 |
9.DH.40 | Serendibite | Ca4[Mg6Al6]O4[Si6B3Al3O36] | Tric. 1 : P1 |
9.DH.40 | Welshite | Ca4Mg9Sb3O4[Si6Be3AlFe2O36] | Tric. 1 : P1 |
9.DH.40 | Wilkinsonite | Na2Fe2+4Fe3+2(Si6O18)O2 | Tric. 1 : P1 |
9.DH.45 | Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] | Mon. 2/m : P21/b |
9.DH.50 | Khmaralite | (Mg,Al,Fe)16[(Al,Si,Be)12O36]O4 | Mon. 2/m : P21/b |
9.DH.55 | Surinamite | (Mg,Fe)3Al4BeSi3O16 | Mon. |
9.DH.60 | Deerite | (Fe,Mn)6(Fe,Al)3[Si6O17]O3(OH)5 | Mon. |
9.DH.65 | Howieite | Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13 | Tric. |
9.DH.65 | Taneyamalite | (Na,Ca)(Mn,Mg,Fe)12Si12(O,OH)44 | Tric. |
9.DH.70 | Johninnesite | Na2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2 | Tric. |
9.DH.75 | Agrellite | NaCa2Si4O10F | Tric. |
Related Minerals - Dana Grouping (8th Ed.)
74.3.4.1 | Sanbornite | Ba2(Si4O10) | Orth. |
74.3.4.4 | Hogarthite | (Na,K)2CaTi2Si10O26 · 8H2O | Mon. 2/m : B2/m |
Related Minerals - Hey's Chemical Index of Minerals Grouping
14.7.1 | Sanbornite | Ba2(Si4O10) | Orth. |
14.7.3 | Walstromite | BaCa2(Si3O9) | Tric. |
14.7.4 | Macdonaldite | BaCa4Si16O36(OH)2 · 10H2O | Orth. |
14.7.5 | Ericssonite | BaMn2+2Fe3+(Si2O7)O(OH) | Mon. 2/m : B2/m |
14.7.6 | Ericssonite-2O | BaMn2+2Fe3+(Si2O7)O(OH) | Orth. |
14.7.7 | Gillespite | BaFe2+Si4O10 | Tet. |
14.7.8 | Andrémeyerite | BaFe2+2(Si2O7) | Mon. |
14.7.9 | Pellyite | Ba2Ca(Fe,Mg)2Si6O17 | Orth. |
14.7.10 | Taikanite | Sr3BaMn2+2(Si4O12)O2 | Mon. |
14.7.11 | Willemite | Zn2SiO4 | Trig. 3 : R3 |
14.7.12 | Hemimorphite | Zn4Si2O7(OH)2 · H2O | Orth. mm2 : Imm2 |
14.7.13 | Zincsilite | Zn3Si4O10(OH)2 · 4H2O (?) | Mon. |
14.7.14 | Hardystonite | Ca2Zn(Si2O7) | Tet. 4 2m : P4 21m |
14.7.15 | Petedunnite | Ca(Zn,Mn2+,Mg,Fe2+)Si2O6 | Mon. |
14.7.16 | Clinohedrite | CaZn(SiO4) · H2O | Mon. m : Bb |
14.7.17 | Junitoite | CaZn2Si2O7 · H2O | Orth. mm2 |
14.7.18 | Larsenite | PbZnSiO4 | Orth. mm2 : Pna21 |
14.7.19 | Esperite | PbCa2Zn3(SiO4)3 | Mon. 2/m : P21/b |
14.7.20 | Hodgkinsonite | Mn2+Zn2(SiO4)(OH)2 | Mon. |
14.7.21 | Gerstmannite | MnMgZn(SiO4)(OH)2 | Orth. |
14.7.22 | Gageite | Mn21(Si4O12)2O3(OH)20 | Mon. 2/m |
14.7.23 | Franklinfurnaceite | Ca2Fe3+Mn2+3Mn3+(Zn2Si2O10)(OH)8 | Mon. 2 : B2 |
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:
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 Krauskopfite
mindat.org URL:
https://www.mindat.org/min-2271.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
Localities for Krauskopfite
Locality List




All localities listed without proper references should be considered as questionable.
Czech Republic | |
| 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 | |
| Dr. H. J. Wilke and Sohne (Eppertshausen) specimen. |
Japan | |
| Hirowatari & Fukuoka (1981) Koubutsu-Gakkai Kou'en-Youshi, 113. |
USA | |
| 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. |
| 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). |
Robert E. Walstrom Collection | |
| |
| American Mineralogist, Volume 69, pages 358-373, 1984; Mineralogical Record: 34(2): 159-166 |
Robert E. Walstrom Collection |
Esquire No. 1 claim, Rush Creek, Rush Creek deposit, Big Creek-Rush Creek Mining District, Fresno Co., California, USA