Otavite Mineral Data

Otavite Mineral Data
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General Otavite Information

Help on Chemical Formula: Chemical Formula: CdCO3
Help on Composition: Composition: Molecular Weight = 172.42 gm
   Cadmium  65.20 %  Cd   74.48 % CdO
   Carbon    6.97 %  C    25.52 % CO2
   Oxygen   27.84 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cd(CO3)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1906
Help on Locality: Locality: Tsumeb, near Otavi (Namibia). Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Otavite Say OTAVITE
Help on Synonym: Synonym: ICSD 20181
  PDF 42-1342
 

Otavite Image

Click Here for Larger Otavite Image in a New Browser Window Images:
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Otavite

Comments: White rhombohedra of otavite.
Location: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia. Scale: See Image.
© Rruff Database

Otavite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:3.29784
Help on Cell Dimensions: Cell Dimensions: a = 4.912, c = 16.199, Z = 6; V = 338.48 Den(Calc)= 5.07
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.95(1), 3.78(0.8), 2.46(0.35),
Click Here for Large Otavite Structure Window Crystal Structure:

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Graf D L , American Mineralogist , 46 (1961) p.1283-1316, Crystallographic tables for the rhombohedral carbonates

 

Physical Properties of Otavite

Help on Cleavage: Cleavage: {1011} Perfect, {1011} Perfect, {1011} Perfect
Help on Color: Color: Yellow brown, White, Reddish, Reddish white.
Help on Density: Density: 5.03
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luminescence: Luminescence: Fluorescent, Short UV=red, Long UV=red.
Help on Luster: Luster: Adamantine - Pearly
Help on Streak: Streak: white
 

Optical Properties of Otavite

Help on Optical Data: Optical Data: NCalc= 1.76 - from Gladstone-Dale relationship (KC = 0.1507) where Ncalc=Dcalc*KC+1
NCalc= 1.76 - from Gladstone-Dale relationship (KC = 0.1507) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Otavite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.59 gm/cc
note: Specific Gravity of Otavite =5.07 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEOtavite = 173.75 barns/electron
U=PEOtavite x rElectron Density= 797.03 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Otavite is Not Radioactive
 

Otavite Classification
Help on Dana Class: Dana Class: 14.01.01.07 (14)Anhydrous Carbonates
  (14.01)with Simple Formula A+ CO3
  (14.01.01)Calcite Group (Trigonal: R-3c)
 
14.01.01.01 Calcite CaCO3 R 3c 3 2/m
 
14.01.01.02 Magnesite MgCO3 R 3c 3 2/m
 
14.01.01.03 Siderite FeCO3 R 3c 3 2/m
 
14.01.01.04 Rhodochrosite MnCO3 R 3c 3 2/m
 
14.01.01.05 Sphaerocobaltite CoCO3 R 3c 3 2/m
 
14.01.01.06 Smithsonite ZnCO3 R 3c 3 2/m
 
14.01.01.07 Otavite CdCO3 R 3c 3 2/m
 
14.01.01.08 Gaspeite (Ni,Mg,Fe)CO3 R 3c 3 2/m
Help on Strunz Class: Strunz Class: 05.AB.05 05 - CARBONATES (NITRATES)
  05.A - Carbonates without additional anions, without H2O
  05.AB -Alkali-earth (and other M2+) carbonates
 
05.AB.05 Calcite CaCO3 R 3c 3 2/m
 
05.AB.05 Gaspeite (Ni,Mg,Fe)CO3 R 3c 3 2/m
 
05.AB.05 Magnesite MgCO3 R 3c 3 2/m
 
05.AB.05 Rhodochrosite MnCO3 R 3c 3 2/m
 
05.AB.05 Otavite CdCO3 R 3c 3 2/m
 
05.AB.05 Sphaerocobaltite CoCO3 R 3c 3 2/m
 
05.AB.05 Siderite FeCO3 R 3c 3 2/m
 
05.AB.05 Smithsonite ZnCO3 R 3c 3 2/m
 

Other Otavite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Otavite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Franklin Minerals(Dunn)
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - MinMax(Deutsch)
13 - MinMax(English)
14 - Mineral and Gemstone Kingdom
15 - Mineralienatlas (Deutsch)
16 - QUT Mineral Atlas
17 - Ruff.Info
18 - University of Colorado - Mineral Structure Data
19 - WWW-MINCRYST

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Otavite

CdCO3
Dana No: 14.01.01.07 Strunz No: 05.AB.05
Locality:

 

Notes: