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Kampfite

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Big Photo

Esquire No. 1 claim, Rush Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
© Thomas Witzke

Show Kampfite Photos (3)



Formula:
Ba
 
12
(Si
 
11
Al
 
5
)O
 
31
(CO
 
3
)
 
8
Cl
 
5
System:MonoclinicColour:Light blue-grey
Lustre:VitreousHardness:3
Name:
For Dr Anthony Robert Kampf (b.1948), Los Angeles County Museum of Natural History, for his many significant contributions to the study of new and rare minerals.


Part of the Monteregianite-(Y)-Wickenburgite Series.

Classification of Kampfite

IMA status:Approved 2000
Strunz 8th edition ID:8/H.38-65
Nickel-Strunz 10th (pending) edition ID:9.EG.20

9 : SILICATES (Germanates)
E : Phyllosilicates
G : Double nets with 6-membered and larger rings
Dana 7th edition ID:78.5.10.1
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Type Occurrence of Kampfite

Type Locality:Esquire No. 1 claim, Rush Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA
Geological Setting of type material:In a quartz-sanbornite outcrop.
Associated Minerals at type locality:
SanborniteQuartz

Physical Properties of Kampfite

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:Light blue-grey
Streak:White
Hardness (Mohs):3
Cleavage:Distinct/Good
{001} well developed
Fracture:Irregular/Uneven
Density (calculated):3.45 g/cm3

Crystallography of Kampfite

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

Optical Data of Kampfite

Type:Uniaxial (-)
RI values: nω = 1.642 nε = 1.594
Maximum Birefringence:δ = 0.048

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Kampfite

Formula:
Ba
 
12
(Si
 
11
Al
 
5
)O
 
31
(CO
 
3
)
 
8
Cl
 
5
Essential elements:Al, Ba, C, Cl, O, Si
All elements listed in formula:Al, Ba, C, Cl, O, Si

Relationship of Kampfite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.EG.05Cymrite
BaAl
 
2
Si
 
2
(O,OH)
 
8
 · H
 
2
O
9.EG.10Naujakasite
(Na,K)
 
6
(Fe
2+
 
,Mn
2+
 
,Ca)(Al,Fe)
 
4
Si
 
8
O
 
26
9.EG.10Manganonaujakasite
Na
 
6
(Mn
2+
 
,Fe
2+
 
)Al
 
4
Si
 
8
O
 
26
9.EG.15Dmisteinbergite
CaAl
 
2
Si
 
2
O
 
8
9.EG.25Strätlingite
Ca
 
2
Al
 
2
SiO
 
7
 · 8H
 
2
O
9.EG.25Vertumnite
Ca
 
4
Al
 
4
Si
 
4
O
 
6
(OH)
 
24
 · 3H
 
2
O
9.EG.30Eggletonite
(Na,K,Ca)
 
2
(Mn,Fe)
 
8
(Si,Al)
 
12
O
 
29
(OH)
 
7
 · 11H
 
2
O
9.EG.30Ganophyllite
(K,Na,Ca)
 
2
Mn
 
8
(Si,Al)
 
12
(O,OH)
 
32
 · 8H
 
2
O
9.EG.30Tamaite
(Ca,K,Ba,Na)
 
3-4
Mn
 
24
(Si,Al)
 
40
(O,OH)
 
112
 · 21H
 
2
O
9.EG.35Coombsite
K(Mn,Fe,Mg)
 
13
(Si,Al)
 
18
O
 
42
(OH)
 
14
9.EG.35Zussmanite
K(Fe,Mg,Mn)
 
13
(Si,Al)
 
18
O
 
42
(OH)
 
14
9.EG.40Franklinphilite
(K,Na)
 
4
(Mn,Zn,Mg,Fe)
 
48
(Si,Al)
 
72
(O,OH)
 
216
 · 6H
 
2
O
9.EG.40Lennilenapeite
K
 
6-7
(Mg,Mn,Fe,Zn)
 
48
(Si,Al)
 
72
(O,OH)
 
216
 · 16H
 
2
O
9.EG.40Parsettensite
K
 
1.2
Mn
 
8
(Si,Al)
 
12
O
 
26
(OH)
 
10
9.EG.40Stilpnomelane
(K,Ca,Na)(Fe
2+
 
,Mg,Al,Fe
3+
 
)
 
8
(Si,Al)
 
12
(O,OH)
 
36
 · nH
 
2
O
9.EG.45Latiumite
K
 
2
Ca
 
6
(Si,Al)
 
11
O
 
25
(SO
 
4
,CO
 
3
)
9.EG.45Tuscanite
(K(Ca,Na)
 
6
(Si,Al)
 
10
O
 
22
[SO
 
4
,CO
 
3
,(OH)
 
2
] · H
 
2
O
9.EG.50Jagoite
(Pb,Ca)
 
3
FeSi
 
3
O
 
10
(Cl,OH)
9.EG.55Wickenburgite
CaPb
 
3
Al
 
2
Si
 
10
O
 
24
(OH)
 
6
9.EG.60Hyttsjöite
Pb
 
18
Ba
 
2
Ca
 
5
Mn
2+
2
Fe
3+
2
Si
 
30
O
 
90
Cl · 6H
 
2
O
9.EG.65Armbrusterite
K
 
5
Na
 
7
Mn
 
15
[(Si
 
9
O
 
22
)
 
4
](OH)
 
10
 · 4H
 
2
O
9.EG.70Britvinite
[Pb
 
7
(OH)
 
3
F(BO
 
3
)
 
2
(CO
 
3
)][Mg
 
4.5
(OH)
 
3
(Si
 
5
O
 
14
)]
9.EG.75Bannisterite
Ca
 
0.5
(K,Na)
 
0.5
(Mn,Fe,Zn)
 
10
(Si,Al)
 
16
O
 
38
(OH)
 
8
 · 5.5H
 
2
O

Other Names for Kampfite

Synonyms:
IMA2000-003
Other Languages:
German:Kampfit
Spanish:Kampfita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Kampfite

Reference List:

- +
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 Kampfite

Search Engines:
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    • External Links:
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  • Look for Kampfite on Athena Mineralogy
  • Look for Kampfite on Wikipedia
  • Look for Kampfite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
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  • Visit the Pueblo Gem and Mineral show, Tucson 2012
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  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
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  • Rare and Unusual minerals at Mineralogical Research Company
  • Search for Kampfite from all mineral dealers at minfind.com
  • Pricedownminerals.com - Reverse Auctions and Shop
  • Top quality minerals from Kristalle of California
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    • Localities for Kampfite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    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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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 17:00:01
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