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Stetefeldtite

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Combination claim, Belmont District, Nye Co., Nevada, USA
© 2005 M. Kampf

Show Stetefeldtite Photos (2)
Formula:
Ag
 
2
Sb
 
2
(O,OH)
 
7
System:IsometricColour:Brown, black, green, ...
Hardness:3½ - 4½
Name:Named after Karl August Stetefeldt (1838-1896), mining engineer and metallurgist.


Stibiconite Group.

Classification of Stetefeldtite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:4/C.11-20
Nickel-Strunz 10th (pending) edition ID:4.DH.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
Dana 8th edition ID:44.1.1.5

44 : ANTIMONATES
1 : A2X2O6(O,OH,F)
Hey's CIM Ref.:24.1.5

24 : Antimonates and Antimonites
1 : Antimonates and antimonites of Na, Cu or Ag
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Type Occurrence of Stetefeldtite

Type Locality:Combination claim, Belmont District, Nye Co., Nevada, USA

Physical Properties of Stetefeldtite

Lustre:Earthy
Colour:Brown, black, green, yellow
Streak:Shiny yellow
Hardness (Mohs):3½ - 4½
Density (measured):4.12 - 4.24 g/cm3

Crystallography of Stetefeldtite

Crystal System:Isometric
Morphology:Massive.

Optical Data of Stetefeldtite

Type:Isotropic

Chemical Properties of Stetefeldtite

Formula:
Ag
 
2
Sb
 
2
(O,OH)
 
7
Essential elements:Ag, O, Sb
All elements listed in formula:Ag, H, O, Sb

Relationship of Stetefeldtite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.DH.05Brannerite
(U
4+
 
,Ca)(Ti,Fe
3+
 
)
 
2
O
 
6
4.DH.05Orthobrannerite
UTi
 
4
O
 
12
(OH)
 
2
4.DH.05Thorutite
(Th,U,Ca)Ti
 
2
(O,OH)
 
6
4.DH.10Kassite
CaTi
 
2
O
 
4
(OH)
 
2
4.DH.10Lucasite-(Ce)
CeTi
 
2
(O,OH)
 
6
4.DH.15Alumotungstite
(W,Al)(O,OH)
 
3
4.DH.15Bariomicrolite
Ba(Ta,Nb)
 
2
(O,OH)
 
7
4.DH.15Bariopyrochlore
(Ba,Sr)
 
2
(Nb,Ti)
 
2
(O,OH)
 
7
4.DH.15Betafite
(Ca,U)
 
2
(Ti,Nb)
 
2
O
 
6
(OH)
4.DH.15Bismutomicrolite
(Bi,Ca)(Ta,Nb)
 
2
O
 
6
(OH)
4.DH.15Calciobetafite
(Ca,RE,Th,U)
 
2
(Nb,Ta,Ti)
 
2
O
 
7
4.DH.15Ceriopyrochlore-(Ce)
(Ce,Ca,Y)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
4.DH.15Cesstibtantite
(Cs,Na)SbTa
 
4
O
 
12
4.DH.15Ferritungstite
(W,Fe
3+
 
)(O,OH)
 
3
4.DH.15Jixianite
Pb(W,Fe
3+
 
)
 
2
(O,OH)
 
7
4.DH.15Kalipyrochlore
(K,Sr)
 
2-x
Nb
 
2
O
 
6
(O,OH)·nH
 
2
O
4.DH.15Microlite
(Ca,Na)
 
2
Ta
 
2
O
 
6
(O,OH,F)
4.DH.15Natrobistantite
(Na,Cs)Bi(Ta,Nb,Sb)
 
4
O
 
12
4.DH.15Plumbopyrochlore
(Pb,Y,U,Ca)
 
2-x
Nb
 
2
O
 
6
(OH)
4.DH.15Plumbomicrolite
(Pb,Ca,U)
 
2
Ta
 
2
O
 
6
(OH)
4.DH.15Plumbobetafite
(Pb,U,Ca)(Ti,Nb)
 
2
O
 
6
(OH,F)
4.DH.15Pyrochlore
(Ca,Na)
 
2
Nb
 
2
O
 
6
(OH,F)
4.DH.15Stibiomicrolite
(Sb,Ca,Na)
 
2
(Ta,Nb)
 
2
O
 
7
4.DH.15Strontiopyrochlore
(Sr,Ce,Ca)
 
0.66
(Nb,Fe)
 
2
(O,OH)
 
7
4.DH.15Stannomicrolite
(Sn,Fe,Mn)
 
2
(Ta,Nb,Sn)
 
2
(O,OH)
 
7
4.DH.15Stibiobetafite
(Sb,Ca)
 
2
(Ti,Nb,Ta)
 
2
(O,OH)
 
7
4.DH.15Uranmicrolite
(U,Ca,Ce)
 
2
(Ta,Nb)
 
2
O
 
6
(OH,F)
4.DH.15Uranpyrochlore
(U,Ca,Ce)
 
2
(Nb,Ta)
 
2
O
 
6
(OH,F)
4.DH.15Yttrobetafite-(Y)
(Y,U,Ce)
 
2
(Ti,Nb,Ta)
 
2
O
 
6
OH
4.DH.15Yttropyrochlore-(Y)
(Y,Na,Ca,U)
 
1-2
(Nb,Ta,Ti)
 
2
(O,OH)
 
7
4.DH.15Fluornatromicrolite
(Na,Ca,Bi)
 
2
Ta
 
2
O
 
6
F
4.DH.15Bismutopyrochlore
(Bi,U,Ca,Pb)
 
1+x
(Nb,Ta)
 
2
O
 
6
(OH)·nH
 
2
O
4.DH.15Thorian Pyrochlore
4.DH.15Elsmoreite
WO
 
3
·0.5H
 
2
O
4.DH.20Bismutostibiconite
Bi(Sb
5+
 
,Fe
3+
 
)
 
2
O
 
7
4.DH.20Bindheimite
Pb
 
2
Sb
 
2
O
 
6
(O,OH)
4.DH.20Monimolite
(Pb,Ca,Fe)
 
3
Sb
 
2
O
 
7
4.DH.20Partzite
Cu
 
2
Sb
 
2
(O,OH)
 
7
4.DH.20Roméite
(Ca,Fe,Mn,Na)
 
2
(Sb,Ti)
 
2
O
 
6
(O,OH,F)
4.DH.20Stibiconite
SbSb
 
2
O
 
6
(OH)
4.DH.25Rosiaite
PbSb
5+
2
O
 
6
4.DH.30Zirconolite
CaZrTi
 
2
O
 
7
4.DH.35Liandratite
U(Nb,Ta)
 
2
O
 
8
4.DH.35Petscheckite
UFe(Nb,Ta)
 
2
O
 
8
4.DH.40Ingersonite
Ca
 
3
MnSb
 
4
O
 
14
4.DH.45Pittongite
Na
 
0.22
(W,Fe
3+
 
)(O,OH)
 
3
 · 0.44H
 
2
O
Related Minerals - Hey's Index Grouping:
24.1.1Mopungite
Na[Sb
5+
 
(OH)
 
6
]
24.1.2Cetineite
(K,Na)
 
6
[Sb
 
2
O
 
3
]
 
6
[SbS
 
3
]
 
2
[(H
 
2
O)
 
6-x
(OH)
 
x
] (x = 0.5)
24.1.3Partzite
Cu
 
2
Sb
 
2
(O,OH)
 
7
24.1.4Cualstibite
Cu
 
2
Al[(OH)
 
6
|Sb
5+
 
(OH)
 
6
]

Other Names for Stetefeldtite

German names:
Stetefeldtit
Spanish names:
Stetefeldtita

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 Stetefeldtite

Reference List:Riotte (1867), B.H. Ztg.: 26: 253.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 598.

Mineralogical Magazine (1953): 30: 100-112.

American Mineralogist (1954): 39: 408.

Internet Links for Stetefeldtite

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    Localities for Stetefeldtite

    Hide Locality List
    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.
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    (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.
    Australia
     
    • New South Wales
      • Yancowinna Co.
    		Birch
    Austria
     
    • Tyrol
      • North Tyrol
        • Inn valley
    		Lapis 19(7/8):13-78 (1994)
            • Brixlegg - Rattenberg
              • Geyer - Silberberg District
                • Silberberg Mt.
    		Schnorrer, G. and Poeverlein, R. (2002) Schwaz-Brixlegg-Fundstellen: 2. Die Minerale des Stockerstollens bei Brixlegg in Tirol. Aufschluss, 53, 209-228.
    Germany
     
    • Lower Saxony
      • Harz Mts
        • St Andreasberg District
    		No reference listed
    USA
     
    • Arizona
      • Cochise Co.
        • Johnny Lyon Hills
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 381.
      • La Paz Co.
        • Trigo Mts
          • Silver District
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 381; Edson, G.M. (1980), The Red Cloud mine, Yuma, AZ, Min.Rec.: 11: 141-152; Rocks & Min.: 61:55-56.
      • Pima Co.
        • Tucson Mts
          • Amole District
            • Snyder Hill
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 381.
    • Nevada
      • Esmeralda Co.
        • Gilbert District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Silver Peak District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Lander Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Lincoln Co.
        • Pahranagat District
    		NBMG Bull 73 Geology and Mineral Resources of Lincoln County, Nevada
      • Mineral Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
        • Belmont District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Bull 99B Geology and Mineral Resources of Northern Nye County, Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • White Pine Co.
        • White Pine District
    		NBMG Bull 85 Geology and Mineral Resources of White Pine County, Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Socorro Co.
    		Minerals of New Mexico 3rd ed.
    Mineral and/or Locality
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