Burtite Mineral Data

Burtite Mineral Data
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General Burtite Information

Help on Chemical Formula: Chemical Formula: CaSn(OH)6
Help on Composition: Composition: Molecular Weight = 260.83 gm
   Calcium   15.37 %  Ca   21.50 % CaO
   Tin       45.51 %  Sn   57.78 % SnO2
   Hydrogen   2.32 %  H    20.72 % H2O
   Oxygen    36.80 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaSn(OH)6
Help on Environment: Environment: From a garnetite in a tin-bearing skarn, formed under conditions of relatively low temperature and low (XCO2).
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: On the west bank of the Beht River, near El Hamman, central Morocco. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Dr. Donald McLain Burt (1943- ), Professor of Mineralogy, Arizona State University, Tempe, Arizona, USA, authority on mineral equilibria and greisen deposits, who had predicted the natural occurrence of the compound
Help on Name Pronunciation: Name Pronunciation: Burtite Say BURTITE
Help on Synonym: Synonym: ICSD 24960
  PDF 30-Sep
 

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Burtite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1
Help on Cell Dimensions: Cell Dimensions: a = 8.128, c = 8.128, Z = 4; V = 465.03 Den(Calc)= 3.73
Help on Crystal System: Crystal System: Trigonal - RhombohedralH-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.06(1), 1.814(0.6), 1.657(0.4),
Click Here for Large Burtite Structure Window Crystal Structure:

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Basciano L C , Peterson R C , Roeder P L , The Canadian Mineralogist , 36 (1998) p.1203-1210, Description of schoenfliesite, MgSn(OH)6, and roxbyite, Cu1.72S, from a 1375 BC shipwreck,, and rietveld neutron-diffraction refinement of synthetic schoenfliesite, wickmanite,, MnSn(OH)6, and burtite, CaSn(OH)6, Locality: a 1375 BC shipwreck

View Additional jPOWD Structure files for Burtite
[1]
 

Physical Properties of Burtite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Colorless.
Help on Density: Density: 3.28
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Burtite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.029 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.146 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1693,KPDmeas= 0.1925,KC= 0.1982
Ncalc = 1.65 - 1.74
Help on Optical Data: Optical Data: Uniaxial (+/-), a=1.63, b=1.633, bire=0.0030.
 

Calculated Properties of Burtite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.12 gm/cc
note: Specific Gravity of Burtite =3.28 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PEBurtite = 133.88 barns/electron
U=PEBurtite x rElectron Density= 417.52 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Burtite is Not Radioactive
 

Burtite Classification
Help on Dana Class: Dana Class: 06.03.06.05 (06)Hydroxides and Oxides Containing Hydroxyl
  (06.03)with (OH)3 or (OH)6 groups
  (06.03.06)Wickmanite group (Cubic or Trigonal, 2+ cations containing Sn)
 
06.03.06.01 Wickmanite MnSn(OH)6 P n3m 4/m 3 2/m
 
06.03.06.02 Schoenfliesite MgSn(OH)6 P n3 2/m 3
 
06.03.06.03 Natanite FeSn(OH)6 P n3m 4/m 3 2/m
 
06.03.06.04 Vismirnovite ZnSn(OH)6 P n3m 4/m 3 2/m
 
06.03.06.05 Burtite CaSn(OH)6 R 3 3
 
06.03.06.06 Mushistonite (Cu,Zn,Fe)Sn(OH)6 P n3m 4/m 3 2/m
Help on Strunz Class: Strunz Class: 04.FC.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.F - Hydroxides (without V or U)
  04.FC -Hydroxides with OH, without H2O; corner-sharing octahedra
 
04.FC.10 Burtite CaSn(OH)6 R 3 3
 
04.FC.10 Mushistonite (Cu,Zn,Fe)Sn(OH)6 P n3m 4/m 3 2/m
 
04.FC.10 Natanite FeSn(OH)6 P n3m 4/m 3 2/m
 
04.FC.10 Vismirnovite ZnSn(OH)6 P n3m 4/m 3 2/m
 
04.FC.10 Schoenfliesite MgSn(OH)6 P n3 2/m 3
 
04.FC.10 Wickmanite MnSn(OH)6 P n3m 4/m 3 2/m
 

Other Burtite Information
Help on References: References: NAME( AntBidBlaNic3) 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 Burtite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Burtite

CaSn(OH)6
Dana No: 06.03.06.05 Strunz No: 04.FC.10
Locality:

 

Notes: