Mineralogy Database

Parabariomicrolite Mineral Data

Search Webmineral :

General Parabariomicrolite Information

Help on Chemical  Formula: Chemical Formula: BaTa4O10(OH)2•2H20
Help on Composition: Composition: Molecular Weight = 1,091.16 gm
   Barium    12.59 %  Ba   14.05 % BaO
   Tantalum  66.33 %  Ta   81.00 % Ta2O5
   Hydrogen   0.55 %  H     4.95 % H2O
   Oxygen    20.53 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaTa4O10(OH)2•2(H2O)
Help on Environment: Environment: Alteration product of microlite crystals, in a decomposed zoned pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Alto do Giz pegmatite, near Parelhas, Rio Grande do Norte, Brazil. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for near and its relation to bariomicrolite.
Help on Name Pronunciation: Name Pronunciation: Parabariomicrolite + Pronunciation Say PARABARIOMICROLITE
Help on Synonym: Synonym: ICSD 40946
  PDF 39-401

Parabariomicrolite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.49091
Help on Cell Dimensions: Cell Dimensions: a = 7.429, c = 18.505, Z = 3; V = 884.46 Den(Calc)= 6.15
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.04(1), 3.172(0.65), 6.18(0.5),

Physical Properties of Parabariomicrolite

Help on Cleavage: Cleavage: {0001} Good, {1010} Good
Help on Color: Color: White, Light pink.
Help on Density: Density: 5.97
Help on Diaphaneity: Diaphaneity: Translucent
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white

Optical Properties of Parabariomicrolite

Help on Optical Data: Optical Data: NCalc= 1.97 - from Gladstone-Dale relationship (KC = 0.1571) where Ncalc=Dcalc*KC+1
NCalc= 1.94 - from Gladstone-Dale relationship (KC = 0.1571) where Ncalc=Dmeas*KC+1

Calculated Properties of Parabariomicrolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.25 gm/cc
note: Specific Gravity of Parabariomicrolite =6.15 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEParabariomicrolite = 858.81 barns/electron
U=PEParabariomicrolite x rElectron Density=4,511.27 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Parabariomicrolite is Not Radioactive

Parabariomicrolite Classification

Help on  Dana Class: Dana Class: (08)Multiple Oxides with Nb, Ta, and Ti
  (08.02)where (A)2 (B2O6) (O,OH,F)
  (08.02.08)Dana Group Parabariomicrolite BaTa4O10(OH)2•2H20 R 3m 3 2/m
Help on  Strunz Class: Strunz Class: 04.FJ.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.F - Hydroxides (without V or U)
  04.FJ -Hydroxides with H2O � (OH); corner-sharing octahedra
04.FJ.20 Parabariomicrolite BaTa4O10(OH)2•2H20 R 3m 3 2/m

Other Parabariomicrolite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Parabariomicrolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Parabariomicrolite using:

Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Parabariomicrolite :

Ask about Parabariomicrolite 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 Espa�ol

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


Dana No: Strunz No: 04.FJ.20





Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.