Calciotantite  Mineral Data

Calciotantite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Masons Minerals
[Thumbnails] [Miniatures] [Cabinets] [About Us] [FAQ]
Welcome To Mason's Minerals
Your Source for Beautiful Minerals and Crystals
We offer a no-questioned-asked Satisfaction Guarantee


General Calciotantite Information

Help on Chemical  Formula: Chemical Formula: Ca(Ta,Nb)4O11
Help on Composition: Composition: Molecular Weight = 807.80 gm
   Calcium    4.96 %  Ca    6.94 % CaO
   Tantalum  56.00 %  Ta   68.38 % Ta2O5
   Niobium   17.25 %  Nb   24.68 % Nb2O5
   Oxygen    21.79 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaTa2.5Nb1.5O11
Help on Environment: Environment: Granite pegmatites.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition (Calcium, Tantalum).
Help on Name Pronunciation: Name Pronunciation: Calciotantite + Pronunciation Say CALCIOTANTITE
Help on Synonym: Synonym: ICSD 1854
  PDF 15-679
 

Calciotantite Image

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

Calciotantite   Tantalite-(Mn)

Comments: SEM image showing calciotantite (CT), manganotatntalite (MTT), microlite (MT) and lithiowodginite (LW) association.
Location: Granitic pegmatites, Kalba, Kazakhstan. Scale: Scale bar 100 µm and 10 µm.
© Diederik Visser

Calciotantite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.96147
Help on Cell Dimensions: Cell Dimensions: a = 6.23, c = 12.22, Z = 2; V = 410.75 Den(Calc)= 6.53
Help on Crystal System: Crystal System: Hexagonal - TrapezohedralH-M Symbol (6 2 2) Space Group: P 6322
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.508(1), 3.02(1), 1.793(0.7),
Click Here for Large Calciotantite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above


Cooper M A , Hawthorne F C , Cerny P , The Canadian Mineralogist , 37 (1999) p.1289-1294, Ta-Nb order in the crystal structure of niobium-rich calciotantite

View Additional jPOWD Structure files for Calciotantite
[1]
 

Physical Properties of Calciotantite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless.
Help on Density: Density: 7.46
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit.
Help on Habit: Habit: Inclusions - Generally found as inclusions in other minerals.
Help on Habit: Habit: Square - Occurs as square crystals in shape or outline.
Help on Hardness: Hardness: 6.5 - Pyrite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Adamantine
Help on Streak: Streak: white
 

Optical Properties of Calciotantite

Help on Optical Data: Optical Data: NCalc= 2.2 - from Gladstone-Dale relationship (KC = 0.184) where Ncalc=Dcalc*KC+1
NCalc= 2.37 - from Gladstone-Dale relationship (KC = 0.184) where Ncalc=Dmeas*KC+1
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Calciotantite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 486 nm   16.90   16.30 
   
 551 nm   17.00   16.60 
 589 nm   17.10   16.70 
 656 nm   18.20   18.00 
Calculated Relative Intensity Colors of Calciotantite in Air
Relative
Intensity
   0%   60% 100% 120% 180% 240% 300% 360% 420% 480% 540%
R1                      
R2                      
 

Calculated Properties of Calciotantite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.69 gm/cc
note: Specific Gravity of Calciotantite =6.53 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0002387551
Boson Index = 0.9997612449
Help on Photoelectric: Photoelectric: PECalciotantite = 690.38 barns/electron
U=PECalciotantite x rElectron Density=3,928.90 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Calciotantite is Not Radioactive
 

Calciotantite Classification

Help on  Dana Class: Dana Class: 08.06.02.01 (08)Multiple Oxides with Nb, Ta, and Ti
  (08.06)Dana Type
  (08.06.02)Calciotantite Group
 
08.06.02.01 Calciotantite Ca(Ta,Nb)4O11 P 6322 6 2 2
 
08.06.02.02 Natrotantite Na2Ta4O11 R 3-c 3 2/m
 
08.06.02.03 Irtyshite Na2(Ta,Nb)4O11 P 63/m 6/m
Help on  Strunz Class: Strunz Class: 04.DJ.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DJ -With large (± medium-sized) cations; polyhedral frameworks
 
04.DJ.05 Calciotantite Ca(Ta,Nb)4O11 P 6322 6 2 2
 
04.DJ.05 Irtyshite Na2(Ta,Nb)4O11 P 63/m 6/m
 
04.DJ.05 Natrotantite Na2Ta4O11 R 3-c 3 2/m
 

Other Calciotantite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Calciotantite :
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

Search for Calciotantite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Calciotantite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Diamond Dan Publications

e-Rocks Auctions

Excalibur Minerals

Exceptional Minerals


Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Calciotantite Mineral Data :

Ask about Calciotantite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Calciotantite Specimen Label here :

Calciotantite

Ca(Ta,Nb)4O11
Dana No: 08.06.02.01 Strunz No: 04.DJ.05
Locality:

 

Notes: