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Kampfite

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Dr. Anthony R. Kampf
Formula:
Ba12(Si11Al5)O31(CO3)8Cl5
Colour:
Light blue-grey
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.45 (Calculated)
Crystal System:
Monoclinic
Name:
Named in 2001 by Laurel Christine Basciano, Lee A. Groat, Andrew C. Roberts, Joel D. Grice, Gail E. Dunning, Eugene E. Foord, Ingrid M. Kjarsgaard, and Robert E. Walstrom in honor of Dr Anthony Robert Kampf [b. June 18, 1948], Los Angeles County Museum of Natural History, for his many significant contributions to the study of new and rare minerals.
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Classification of KampfiteHide

Approved
Approval Year:
2000
9.EG.20

9 : SILICATES (Germanates)
E : Phyllosilicates
G : Double nets with 6-membered and larger rings
Dana 7th ed.:
78.5.10.1

Pronounciation of KampfiteHide

Pronounciation:
PlayRecorded byFrom
Jolyon & Katya RalphUnited Kingdom

Physical Properties of KampfiteHide

Vitreous
Transparency:
Translucent
Colour:
Light blue-grey
Streak:
White
Hardness:
Cleavage:
Distinct/Good
{001} well developed
Fracture:
Irregular/Uneven
Density:
3.45 g/cm3 (Calculated)

Optical Data of KampfiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.642 nε = 1.594
Max Birefringence:
δ = 0.048
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of KampfiteHide

Formula:
Ba12(Si11Al5)O31(CO3)8Cl5

Crystallography of KampfiteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Cell Parameters:
a = 31.2329(7) Å, b = 5.2398(1) Å, c = 9.0966(3) Å
β = 106.933(2)°
Ratio:
a:b:c = 5.961 : 1 : 1.736
Unit Cell V:
1424.2 ų
Z:
1
Comment:
Space group Cc; strongly pseudohexagonal (pseudo-P63/mmc, a = 5.244, c = 29.83 A).

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.883 (100)
14.67 (100)
2.616 (70)
2.988 (60)
2.887 (50)
1.969 (50)
3.357 (50)

Type Occurrence of KampfiteHide

Geological Setting of Type Material:
In a quartz-sanbornite outcrop.
Associated Minerals at Type Locality:

Synonyms of KampfiteHide

Other Language Names for KampfiteHide

German:Kampfit
Simplified Chinese:氯碳硅钡石
Spanish:Kampfita
Traditional Chinese:氯碳矽鋇石

Common AssociatesHide

Associated Minerals Based on Photo Data:
Sanbornite5 photos of Kampfite associated with Sanbornite on mindat.org.
Pyrrhotite2 photos of Kampfite associated with Pyrrhotite on mindat.org.
Fresnoite2 photos of Kampfite associated with Fresnoite on mindat.org.
Macdonaldite1 photo of Kampfite associated with Macdonaldite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.EG.05CymriteBaAl2Si2(O,OH)8 · H2OMon.
9.EG.10Naujakasite(Na,K)6(Fe2+,Mn2+,Ca)(Al,Fe)4Si8O26Mon. 2/m : B2/m
9.EG.10ManganonaujakasiteNa6(Mn2+,Fe2+)Al4Si8O26Mon.
9.EG.15DmisteinbergiteCa(Al2Si2O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm
9.EG.25SträtlingiteCa2Al2SiO7 · 8H2OTrig.
9.EG.25VertumniteCa4Al4Si4O6(OH)24 · 3H2OMon. 2/m : P21/m
9.EG.30Eggletonite(Na,K,Ca)2(Mn,Fe)8(Si,Al)12O29(OH)7 · 11H2OMon.
9.EG.30Ganophyllite(K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2OMon.
9.EG.30Tamaite(Ca,K,Ba,Na)3-4Mn24(Si,Al)40(O,OH)112 · 21H2OMon.
9.EG.35CoombsiteK(Mn,Fe,Mg)13(Si,Al)18O42(OH)14Trig.
9.EG.35ZussmaniteK(Fe,Mg,Mn)13(Si,Al)18O42(OH)14Trig. 3 : R3
9.EG.40Franklinphilite(K,Na)4(Mn2+,Mg,Zn)48(Si,Al)72(O,OH)216 · 6H2OTric.
9.EG.40LennilenapeiteK6-7(Mg,Mn,Fe,Zn)48(Si,Al)72(O,OH)216 · 16H2OTric.
9.EG.40Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2OMon. 2/m : B2/m
9.EG.40Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2OTric. 1 : P1
9.EG.45Latiumite(Ca,K)4(Si,Al)5O11(SO4,CO3)Mon.
9.EG.45Tuscanite(K(Ca,Na)6(Si,Al)10O22[SO4,CO3,(OH)2] · H2OMon.
9.EG.50JagoitePb18Fe3+4[Si4(Si,Fe3+)6][Pb4Si16(Si,Fe)4]O82Cl6Hex.
9.EG.55WickenburgiteCaPb3Al2Si10O24(OH)6Trig. 3m : P3 1c
9.EG.60HyttsjöitePb18Ba2Ca5Mn2+2Fe3+2Si30O90Cl · 6H2OTrig.
9.EG.65ArmbrusteriteK5Na7Mn15[(Si9O22)4](OH)10 · 4H2OMon. 2/m : B2/m
9.EG.70Britvinite[Pb7(OH)3F(BO3)2(CO3)][Mg4.5(OH)3(Si5O14)]Tric. 1 : P1
9.EG.75Bannisterite(Ca,K,Na)(Mn2+,Fe2+)10(Si,Al)16O38(OH)8 · nH2OMon. 2/m : B2/b

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 KampfiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Basciano, L.C., Groat, L. A., Roberts, A. C., Grice, J. D., Dunning, G. E., Foord, E. E., Kjarsgaard, I. M. and Walstrom, R. E. (2001): Kampfite, a new barium silicate carbonate mineral species from Fresno County, California. Canadian Mineralogist, 39, 1053-1058
Mineralogical Record (2002): 33: 163.
Basciano, L.C. & Groat, L.A. (2007): The crystal structure of kampfite. Canadian Mineralogist, 45, 935-943.

Internet Links for KampfiteHide

Localities for KampfiteHide

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.
USA
 
  • California
    • Fresno Co.
      • Big Creek-Rush Creek District
        • Rush Creek deposit
          • Big Creek
Canadian Mineralogist (2001): 39:1053-1058.
          • Rush Creek
Mineralogical Record (2002): 33: 163.
Mineral and/or Locality  
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