Mineralogy Database

Kampfite Mineral Data

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General Kampfite Information

Help on Chemical  Formula: Chemical Formula: Ba12(Si11Al5)O31(CO3)8Cl5
Help on Composition: Composition: Molecular Weight = 3,266.13 gm
   Barium     50.96 %  Ba   56.90 % BaO
   Sodium      0.04 %  Na    0.06 % Na2O
   Strontium   0.08 %  Sr    0.10 % SrO
   Titanium    0.07 %  Ti    0.12 % TiO2
   Aluminum    4.28 %  Al    8.09 % Al2O3
   Silicon     9.26 %  Si   19.81 % SiO2
   Carbon      2.94 %  C    10.78 % CO2
   Chlorine    5.35 %  Cl    5.35 % Cl
                -   %   Cl   -1.21 % -O=Cl2   
   Oxygen     27.01 %  O
             ______        ______ 
             100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba12.12Na0.06Sr0.03Si10.77Al5.18Ti0.05C8O55.14Cl4.93
Help on Environment: Environment: In a quartz-sanbornite outcrop. Cymrite-like; structure
Help on IMA Status: IMA Status: Approved IMA 2000 (Dana # Added)
Help on Locality: Locality: Esquire #1 claim, Rush Creek, eastern Fresno County, California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Anthony Robert Kampf (1948-), Curator and Section Head of Minerals, Los Angeles County Museum, in recognition of his many contributions in the study of new minerals.
Help on Name Pronunciation: Name Pronunciation: Kampfite Say KAMPFITE
Help on Synonym: Synonym: IMA2000-003

Kampfite Image

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Comments: Light, bluish-gray crystalline kampfite.
Location: Esquire #1 Claim, Rush Creek, Fresno Co., California, USA. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

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Comments: Anthony Kampf, Curator and Section Head of the Mineral Sciences Section at the Los Angeles County Museum of Natural History and the person whom kampfite was named for, kindly provided the pronunciation of the mineral kampfite.
Location: Tucson Convention Center, 50th Tucson Gem and Mineral Show, February 12, 2004. Scale: NA.
© Dave Barthelmy

Kampfite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =5.9607:1:1.736
Help on Cell Dimensions: Cell Dimensions: a = 31.2329, b = 5.2398, c = 9.0966, Z = 1; beta = 106.933° V = 1,424.16 Den(Calc)= 3.81
Help on Crystal System: Crystal System: Monoclinic - Domatic H-M Symbol (m) Space Group: Cc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.879(1), 2.621(0.63), 14.883(0.46),3.355(0.31), 2.883(0.27), 1.97(0.21), 2.173(0.2), 4.348(0.18),

Physical Properties of Kampfite

Help on Cleavage: Cleavage: {0001} Good
Help on Color: Color: Light blue gray.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Kampfite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.052 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1622,KC= 0.1712
Ncalc = 1.65
Help on Optical Data: Optical Data: Uniaxial (-), e=1.594, w=1.642, bire=0.0480.

Calculated Properties of Kampfite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.44 gm/cc
note: Specific Gravity of Kampfite =3.81 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PEKampfite = 227.55 barns/electron
U=PEKampfite x rElectron Density= 781.83 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kampfite is Not Radioactive

Kampfite Classification

Help on  Dana Class: Dana Class: (78)Unclassified silicates
  (78.05)possible phyllosilicates
  (78.05.10)Dana Group Kampfite! Ba12(Si11Al5)O31(CO3)8Cl5 Cc m
Help on  Strunz Class: Strunz Class: 09.EG.20 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EG -Double nets with 6-membered and larger rings
09.EG.20 Kampfite! Ba12(Si11Al5)O31(CO3)8Cl5 Cc m

Other Kampfite Information

Help on References: References: NAME( MinRec, Vol 33, p 163) PHYS. PROP.(MinRec, v33, p163, AmMin, v93:705) OPTIC PROP.(MinRec, Vol 33, p 163)
Help on See Also: See Also: Links to other databases for Kampfite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 09.EG.20





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