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Ottensite Mineral Data
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General Ottensite Information
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 Chemical Formula: |
Na3(Sb2O3)3(SbS3)•3H2O |
| Composition: |
Molecular Weight = 1,214.40 gm |
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Potassium 0.10 % K |
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Sodium 5.47 % Na |
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Antimony 70.08 % Sb |
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Hydrogen 0.53 % H |
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Sulfur 7.37 % S |
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Oxygen 16.46 % O |
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______ |
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100.00 % |
| Empirical Formula: |
Na2.89K0.03(Sb2O3)3.03Sb0.93S2.793(OH)0.13 |
| Environment: |
Supergene product of stibnite weathering. Na-dominant analogue of cetineite. |
| IMA Status: |
Approved IMA 2006 (Dana # Added) |
| Locality: |
Qinglong Sb-deposit, Quinglong County, Guizhou Province, People�s Republic of China Link to MinDat.org Location Data. |
| Name Origin: |
Named for Berthold Ottens (b 1942), , mineral collector and dealer from Spiegelau, Germany. |
| Synonym: |
IMA2006-014 |
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Ottensite Image |
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Images:
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Ottensite
Comments: Red-brown crusts of ottensite on stibnite.
Location: Qinglong (Dachang) Sb-Au deposit, Qinglong Co., Qianxi'nan Autonomous Prefecture, Guizhou Province, China.
Scale: Specimen size 5.2 x 3.0 x 2.9 cm.
© Rob Lavinsky |
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Ottensite Crystallography
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| Axial Ratios: |
a:c = 1:0.393 |
| Cell Dimensions: |
a = 14.1758, c = 5.5712, Z = 2; V = 969.56 Den(Calc)= 4.16 |
| Crystal System: |
Hexagonal - Pyramidal H-M Symbol (6) Space Group: P 63 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.906(1), 2.991(0.77), 12.29(0.6),3.406(0.57), 4.13(0.52), 1.4842(0.51), 2.679(0.51), 4.64(0.51), |
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Physical Properties of Ottensite
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| Cleavage: |
None |
| Color: |
Reddish brown. |
| Diaphaneity: |
Translucent |
| Fracture: |
Brittle - Irregular - Very brittle fracture producing irregular fragments |
| Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
| Hardness: |
3.5 - Copper Penny |
| Luster: |
Adamantine |
| Streak: |
yellow brown |
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Optical Properties of Ottensite
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| Gladstone-Dale: |
CI calc= -0.186 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.238,KC= 0.2007
Ncalc = 1.83 |
| Optical Data: |
Uniaxial (?), a=1.99, b=1.99, bire=0.0000. |
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Calculated Properties of Ottensite
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| Electron Density: |
Bulk Density (Electron Density)=3.70 gm/cc
note: Specific Gravity of Ottensite =4.16 gm/cc.
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| Fermion Index: |
Fermion Index = 0.000632418
Boson Index = 0.999367582 |
| Photoelectric: |
PEOttensite = 232.36 barns/electron
U=PEOttensite x relectron= 859.34 barns/cc.
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| Radioactivity: |
GRapi = 1.23 (Gamma Ray American Petroleum Institute Units)
Concentration of Ottensite per GRapi unit = 81.45 (%)
Estimated Radioactivity from Ottensite  - barely detectable
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Ottensite Classification
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| Dana Class: |
02.13.03.02 (02)Sulfides - Including Selenides and Tellurides |
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(02.13)(Oxysulfides) |
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(02.13.03)Dana Group |
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02.13.03.01 Cetineite (K,Na)3x(Sb2O3)3(Sb2S3)(OH)x•(2.8-x)(H2O) P 63 6 |
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02.13.03.02 Ottensite! Na3(Sb2O3)3(SbS3)•3H2O P 63 6 |
| Strunz Class: |
02.MA.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.M - |
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02.MA -Oxysulfosalts of Alkalies and Alkali Earths |
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02.MA.05 Cetineite (K,Na)3x(Sb2O3)3(Sb2S3)(OH)x•(2.8-x)(H2O) P 63 6 |
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02.MA.05 Ottensite! Na3(Sb2O3)3(SbS3)•3H2O P 63 6 |
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Other Ottensite Information
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| References: |
NAME( MinRec, Jan07) PHYS. PROP.(MinRec, Jan07) OPTIC PROP.(MinRec, Jan07) |
| See Also: |
Links to other databases for Ottensite :
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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Print or Cut-and-Paste your Ottensite Specimen Label here :
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Ottensite
Na3(Sb2O3)3(SbS3)•3H2O
Dana No: 02.13.03.02 Strunz No: 02.MA.05
Locality:
Notes:
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