Bariosincosite Mineral Data

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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 31.11 % VO₂

Phosphorus 11.62 % P 26.62 % P₂O₅

Hydrogen 1.51 % H 13.51 % H₂O

Oxygen 42.01 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

BaV⁴⁺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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Forms: ( 1 0 0) ( 0 0 1)

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Crystal Structure:

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Roca M , Marcos M D , Amoros P , Alamo J , Beltran-Porter A , Beltran-Porter D , Inorganic Chemistry , 36 (1997) p.3414-3421, Synthesis and crystal structure of a novel lamellar barium derivative:, Ba(VOPO4)2*4H2O. Synthetic pathways for layered oxovanadium phosphate hydrates, M(VOPO4)2*nH2O

Physical Properties of Bariosincosite

Cleavage:

{001} Distinct

Color:

Pale green, Pale bluish green.

Diaphaneity:

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= 0.168 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2112,KC= 0.2537
Ncalc = 1.86

Optical Data:

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

Calculated Properties of Bariosincosite

Electron Density:

Bulk Density (Electron Density)=3.21 gm/cc
note: Specific Gravity of Bariosincosite =3.40 gm/cc.

Fermion Index:

Fermion Index = 0.04
Boson Index = 0.96

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bariosincosite is Not Radioactive

Bariosincosite Classification

Dana Class:

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

(42.11)where (AB)4 (XO4)3 Zq · x(H2O)

(42.11.19)Sincosite Group

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

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

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

Strunz Class:

08.CJ.65 08 - PHOSPHATES, ARSENATES, VANADATES

08.C - Phosphates without Additional Anions, with H2O

08.CJ -With only large cations

08.CJ.65 Sincosite Ca(VO)2(PO4)2•5(H2O) P mmm or P 4/nmm Tetra

08.CJ.65 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 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Bariosincosite

Ba(V++++O)2(PO4)2•4(H2O)
Dana No: 42.11.19.02 Strunz No: 08.CJ.65
Locality:

Notes: