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Stetefeldtite Mineral Data

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General Stetefeldtite Information

Help on Chemical  Formula: Chemical Formula: Ag2Sb2O6(O,OH)
Help on Composition: Composition: Molecular Weight = 571.74 gm
   Silver    37.73 %  Ag   40.53 % Ag2O
   Antimony  42.59 %  Sb   56.58 % Sb2O5
   Hydrogen   0.09 %  H     0.79 % H2O
   Oxygen    19.59 %  O
            ______        ______ 
            100.00 %       97.90 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ag2Sb2O6.5(OH)0.5
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1867
Help on Locality: Locality: Belmont, Nye County, Montanta, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Carl A. Stetefeld (1838-1896), German-American mining engineer.
Help on Name Pronunciation: Name Pronunciation: Stetefeldtite + Pronunciation Say STETEFELDTITE
Help on Synonym: Synonym: Stetfeldtite
 

Stetefeldtite Image

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  Stetefeldtite

Comments: Light yellow, massive, earthy stetefeldtite aggregates.
Location: Snyder Hill Mine, Tucson Mountains, Pima Co., Arizona, USA. Scale: 2.5x2x1cm.
© Tom Loomis / Dakota Matrix

Stetefeldtite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.46, Z = 6; V = 1,144.45 Den(Calc)= 4.98
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.02(1), 1.85(0.7), 2.61(0.7),
 

Physical Properties of Stetefeldtite

Help on Color: Color: Black, Brown, Yellowish.
Help on Density: Density: 5.38
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 3.5-4.5 - Between Copper Penny and Fluorite-Apatite
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: yellow
 

Optical Properties of Stetefeldtite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.122 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.212 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1908,KPDmeas= 0.1766,KC= 0.1573
Ncalc = 1.78 - 1.85
Help on Optical Data: Optical Data: Isotropic, n=1.95.
 

Calculated Properties of Stetefeldtite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.75 gm/cc
note: Specific Gravity of Stetefeldtite =5.38 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0000941581
Boson Index = 0.9999058419
Help on Photoelectric: Photoelectric: PEStetefeldtite = 239.21 barns/electron
U=PEStetefeldtite x rElectron Density=1,136.71 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Stetefeldtite is Not Radioactive
 

Stetefeldtite Classification

Help on  Dana Class: Dana Class: 44.01.01.05 (44)Antimonates
  (44.01)(A)2 (X2 O6) (O,OH,F)
  (44.01.01)Stibiconite Group
 
44.01.01.01 Stibiconite SbSb2O6(OH) F d3m 4/m 3 2/m
 
44.01.01.02 Bindheimite Pb2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
44.01.01.03 Romeite (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F) F d3m 4/m 3 2/m
 
44.01.01.03a Lewisite? (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m
 
44.01.01.04 Monimolite (Pb,Ca)2Sb2O7 F d3m 4/m 3 2/m
 
44.01.01.05 Stetefeldtite Ag2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
44.01.01.06 Bismutostibiconite Bi(Sb,Fe)2O7 F d3m 4/m 3 2/m
 
44.01.01.07 Partzite Cu2Sb2(O,OH)7(?) F d3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 04.DH.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DH -With large (� medium-sized) cations; sheets of edge-sharing octahedra
 
04.DH.20 Bismutostibiconite Bi(Sb,Fe)2O7 F d3m 4/m 3 2/m
 
04.DH.20 Bindheimite Pb2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
04.DH.20 Monimolite (Pb,Ca)2Sb2O7 F d3m 4/m 3 2/m
 
04.DH.20 Partzite Cu2Sb2(O,OH)7(?) F d3m 4/m 3 2/m
 
04.DH.20 Stetefeldtite Ag2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
04.DH.20 Romeite (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F) F d3m 4/m 3 2/m
 
04.DH.20 Stibiconite SbSb2O6(OH) F d3m 4/m 3 2/m
 

Other Stetefeldtite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Stetefeldtite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Stetefeldtite

Ag2Sb2O6(O,OH)
Dana No: 44.01.01.05 Strunz No: 04.DH.20
Locality:

 

Notes:

 

 
   
 


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