Parabariomicrolite Mineral Data

Parabariomicrolite Mineral Data +

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General Parabariomicrolite Information

Chemical Formula:

BaTa4O10(OH)2·2H20

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

Empirical Formula:

BaTa₄O₁₀(OH)₂·2(H₂O)

IMA Status:

Approved IMA 1986

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 40946

PDF 39-401

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Parabariomicrolite Crystallography

Axial Ratios:

a:c = 1:2.49091

Cell Dimensions:

a = 7.429, c = 18.505, Z = 3; V = 884.46 Den(Calc)= 6.15

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.04(1), 3.172(0.65), 6.18(0.5),

Physical Properties of Parabariomicrolite

Cleavage:

[0001] Good, [1010] Good

Color:

White, Light pink.

Density:

5.97

Diaphaniety:

Translucent

Hardness:

4 - Fluorite

Luster:

Vitreous - Pearly

Streak:

white

Optical Properties of Parabariomicrolite

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

Electron Density:

r_electron=5.25 gm/cc
note: r_{Parabariomicrolite}=6.15 gm/cc.

Fermion Index

Fermion Index = 0.0226
Boson Index = 0.9774

Photoelectric:

PE_{Parabariomicrolite}= 858.81 barns/electron
U=PE_{Parabariomicrolite} x r_electron=4,511.26 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Parabariomicrolite is Not Radioactive

Parabariomicrolite Classification

Dana Class:

8.2.8.1 (8)Multiple Oxides with Nb, Ta, and Ti

(8.2)where (A)2 (B2O6) (O,OH,F)

(8.2.8)Dana Group

8.2.8.1 Parabariomicrolite BaTa4O10(OH)2·2H20 R 3m 3 2/m

Strunz Class:

IV/C.21-10 IV - Oxides

IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)

IV/C.21 - Parbariomicrolite series

IV/C.21-10 Parabariomicrolite BaTa4O10(OH)2·2H20 R 3m 3 2/m

Other Parabariomicrolite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Parabariomicrolite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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

Parabariomicrolite

BaTa4O10(OH)2·2H20
Dana No: 8.2.8.1 Strunz No: IV/C.21-10
Locality:

Notes: