Bariosincosite Mineral Data

Bariosincosite Mineral Data

General Bariosincosite Information

Chemical Formula:

Ba(V++++O)2(PO4)2·4(H2O)

Composition:

Molecular Weight = 533.21 gm

Barium 25.75 % Ba 28.76 % BaO

Vanadium 19.11 % V 34.11 % V₂O₅

Phosphorus 11.62 % P 26.62 % P₂O₅

Hydrogen 1.51 % H 13.51 % H₂O

Oxygen 42.01 % O

______ ______

100.00 % 103.00 % = TOTAL OXIDE

Empirical Formula:

BaV⁵⁺₂O₂(PO₄)₂·4(H₂O)

Environment:

Within the copper-mineralized contact zone of a quartzite unit and a slate unit. The Ba-dominant analogue of sincosite

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

The Spring Creek mine about 10 km south of Wilmingon and on the eastern flank of Mt. Remarkable, at the southern end of the Flinders Ranges, South Australia, Australia. Link to MinDat.org Location Data.

Name Origin:

Named for its relationship to sincosite.

Synonym:

IMA1998-047

Bariosincosite Image

Images:

Click Here for Larger Bariosincosite Image

Bariosincosite Fluellite

Comments: Vivid green crystals of bariosincosite well placed on a matrix covered by colorless, tabular fluellite with some minor metavariscite.
Location: Eugui Quarry, Cantera Azkarate, Eugui, Navarra, Spain. Scale: Rosette size: 0.3 x 0.2 cm.
© Fabre Minerals

Bariosincosite Crystallography

Axial Ratios:

a:c = 1:1.41235

Cell Dimensions:

a = 9.031, c = 12.755, Z = 4; V = 1,040.29 Den(Calc)= 3.40

Crystal System:

Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 4/n or P 4/nmm

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

By Intensity(I/I_o): 2.017(1), 3.11(1), 2.786(0.8),5.784(0.7), 2.847(0.4), 2.368(0.3), 4.522(0.3),

Forms:

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Physical Properties of Bariosincosite

Cleavage:

[001] Distinct

Color:

Pale green, Pale bluish green.

Diaphaniety:

Transparent

Fracture:

Splintery - Thin, elongated fractures produced by intersecting good cleavages or partings (e.g. hornblende).

Habit:

Divergent - Crystals radiate from a center without producing stellar forms.

Habit:

Platy - Sheet forms (e.g. micas).

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Hardness:

3 - Calcite

Luster:

Vitreous (Glassy)

Streak:

pale green

Optical Properties of Bariosincosite

Gladstone-Dale:

CI calc= 0.147 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2112,KC= 0.2474

Optical Data:

Uniaxial (-), e=1.715, w=1.721, bire=0.0060.

Calculated Properties of Bariosincosite

Electron Density:

r_electron=3.21 gm/cc
note: r_{Bariosincosite}=3.40 gm/cc.

Fermion Index

Fermion Index = 0.04658
Boson Index = 0.95342

Photoelectric:

PE_{Bariosincosite}= 113.55 barns/electron
U=PE_{Bariosincosite} x r_electron= 364.91 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bariosincosite is Not Radioactive

Bariosincosite Classification

Dana Class:

42.11.19.2 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.11)where (AB)4 (XO4)3 Zq · x(H2O)

(42.11.19)Dana Group

42.11.19.1 Sincosite Ca(VO)2(PO4)2·5(H2O) P mmm or P 4/nmm Tetra

42.11.19.2 Bariosincosite ! Ba(VO)2(PO4)2·4(H2O) P 4/n or P 4/nmm 4/m

42.11.19.3 Phosphovanadylite! (Ba,Ca,K,Na)x[(V,Al)4P2(O,OH)16]·12(H2O)x~0.66 I 43m 4 3m

Strunz Class:

VII/E.03-30 VII - Phosphates, Arsenates and Vanadates

VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-

VII/E.03 - Sincosite - Simplotite series

VII/E.03-10 Sincosite Ca(VO)2(PO4)2·5(H2O) P mmm or P 4/nmm Tetra

VII/E.03-20 Simplotite CaV4O9·5(H2O) A2/m 2/m

VII/E.03-30 Bariosincosite Ba(VO)2(PO4)2·4(H2O) P 4/n or P 4/nmm 4/m

Other Bariosincosite Information

References:

NAME( MinRec, Vol 31 No 4) PHYS. PROP.(MinRec, Vol 31 No 4) OPTIC PROP.(MinRec, Vol 31 No 4)

See Also:

Links to other databases for Bariosincosite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 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

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Bariosincosite

Ba(V++++O)2(PO4)2·4(H2O)
Dana No: 42.11.19.2 Strunz No: VII/E.03-30
Locality:

Notes: