Metarossite Mineral Data

General Metarossite Information

Chemical Formula:

CaV2O6•2(H2O)

Composition:

Molecular Weight = 273.99 gm

Calcium 14.63 % Ca 20.47 % CaO

Vanadium 37.19 % V 66.38 % V₂O₅

Hydrogen 1.47 % H 13.15 % H₂O

Oxygen 46.72 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaV⁵⁺₂O₆•2(H₂O)

Environment:

Coatins on sandstone.

IMA Status:

Valid Species (Pre-IMA) 1927

Locality:

Bull Pen Canyon, San Miguel County, Colorado, USA. Link to MinDat.org Location Data.

Name Origin:

Named as the dehydration product of rossite.

Name Pronunciation:

Metarossite + Pronunciation

Synonym:

ICSD 40085

PDF 29-392

Metarossite Image

Images:

Metarossite

Comments: Light yellow metarossite on sandstone.
Location: Burro Mine, Slick Rock District, San Miguel Co., Colorado. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Images:

Metarossite

Comments: Bright yellow platy crystals to about 0.5mm covering sandstone matrix.
Location: Arrowhead Claim, San Miguel Co., Colorado, USA. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Metarossite Crystallography

Axial Ratios:

a:b:c =0.8796:1:1.0996

Cell Dimensions:

a = 6.215, b = 7.065, c = 7.769, Z = 2; alpha = 92.92°, beta = 96.65°, gamma = 105.78° V = 325.64 Den(Calc)= 2.79

Crystal System:

Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 5.926(1), 6.773(0.63), 5.034(0.58),

Physical Properties of Metarossite

Color:

Yellow.

Density:

2.45

Hardness:

1-2 - Between Talc and Gypsum

Luminescence:

Non-fluorescent.

Luster:

Vitreous - Pearly

Optical Properties of Metarossite

Gladstone-Dale:

CI meas= -0.103 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.035 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3024,KPDmeas= 0.3456,KC= 0.3134
Ncalc = 1.77 - 1.88

Optical Data:

Biaxial (+), a=1.84, b=1.85, g=1.85, bire=0.0100, 2V(Calc)=0, 2V(Meas)=70. Dispersion relatively strong.

Calculated Properties of Metarossite

Electron Density:

Bulk Density (Electron Density)=2.74 gm/cc
note: Specific Gravity of Metarossite =2.80 gm/cc.

Fermion Index:

Fermion Index = 0.0013535458
Boson Index = 0.9986464542

Photoelectric:

PE_Metarossite= 8.87 barns/electron
U=PE_Metarossite x rElectron Density= 24.28 barns/cc.

Radioactivity:

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

Metarossite Classification

Dana Class:

47.01.01.02 (47)Vanadium Oxysalts

(47.01)(Normal VO3)

(47.01.01)Rossite Group

47.01.01.01 Rossite CaV2O6•4(H2O) P1 1

47.01.01.02 Metarossite CaV2O6•2(H2O) P1 1

47.01.01.03 Ansermetite! MnV2O6•4(H2O) C 2/m 2/m

Strunz Class:

04.HD.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.H - V[5,6] Vanadates

04.HD -Inovanadates

04.HD.10 Metarossite CaV2O6•2(H2O) P1 1

Other Metarossite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Metarossite :
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
15 - WWW-MINCRYST

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

Metarossite

CaV2O6•2(H2O)
Dana No: 47.01.01.02 Strunz No: 04.HD.10
Locality:

Notes:

Dakota Matrix
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