Martyite Mineral Data

Martyite Mineral Data
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General Martyite Information

Help on Chemical Formula: Chemical Formula: Zn3V2O7(OH)2•2H2O
Help on Composition: Composition: Molecular Weight = 468.09 gm
   Calcium    0.43 %  Ca    0.60 % CaO
   Vanadium  21.77 %  V    38.86 % V2O5
   Zinc      37.16 %  Zn   46.25 % ZnO
   Cobalt     1.89 %  Co    2.40 % CoO
   Hydrogen   1.33 %  H    11.89 % H2O
   Oxygen    37.43 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn2.66Co0.15Ca0.05V5+2O7(OH)1.72•2.23(H2O)
Help on Environment: Environment: Formed from post-mining leaching and oxidation of V-U oxide replacements of organic matter.. Zn-dominant analogue of volborthite.
Help on IMA Status: IMA Status: Approved IMA 2007 (Dana # Added)
Help on Locality: Locality: Blue Cap mine, about 15 km east of La Sal, San Juan Co., Utah, USA Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its discoverer, Joe Marty, of Salt Lake City, Utah, who is also responsible for the discovery of three other new minerals from the same area.
Help on Synonym: Synonym: IMA2007-026
 

Martyite Image

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Martyite

Comments: Clusters of yellow flakes and coarser red-orange plates of martyite on V-U replacement of organic material.
Location: Blue Cap mine, near La Sal, San Juan County, Utah, USA. Scale: Picture size 1.4 mm.
© Canadian Mineralogist

Martyite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.18045
Help on Cell Dimensions: Cell Dimensions: a = 6.0818, c = 7.1793, Z = 1; V = 229.97 Den(Calc)= 3.38
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.211(1), 2.968(0.5), 2.47(0.4),2.628(0.35), 1.485(0.25), 1.513(0.2), 1.773(0.2), 4.252(0.2),
 

Physical Properties of Martyite

Help on Cleavage: Cleavage: {001} Perfect, {110} Good
Help on Color: Color: Yellow orange, Red orange.
Help on Density: Density: 3.37
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: pale yellow orange
 

Optical Properties of Martyite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.053 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2371,KPDmeas= 0.2378,KC= 0.2512
Ncalc = 1.85
Help on Optical Data: Optical Data: Uniaxial (+), w=1.797, e=1.806, bire=0.0090.
 

Calculated Properties of Martyite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.23 gm/cc
note: Specific Gravity of Martyite =3.37 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEMartyite = 23.41 barns/electron
U=PEMartyite x rElectron Density= 75.72 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Martyite is Not Radioactive
 

Martyite Classification
Help on Dana Class: Dana Class: 40.03.10.02 (40)Hydrated Phosphates, etc
  (40.03)where (A++)3 (XO4)2 · x(H2O)
  (40.03.10)Dana Group
 
40.03.10.01 Volborthite Cu3V2O7(OH)2•2(H2O) C 2/m 2/m
 
40.03.10.02 Martyite! Zn3V2O7(OH)2•2H2O P 3m1 3 2/m
Help on Strunz Class: Strunz Class: 08.FD.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.F - Polyphosphates, Polyarsenates, [4]-Polyvanadates
  08.FD -Polyphosphates, etc, with OH and H2O
 
08.FD.05 Volborthite Cu3V2O7(OH)2•2(H2O) C 2/m 2/m
 
08.FD.05 Martyite! Zn3V2O7(OH)2•2H2O P 3m1 3 2/m
 

Other Martyite Information
Help on References: References: NAME( CanMin v43:687) PHYS. PROP.(CanMin v43:687) OPTIC PROP.(CanMin v43:687)
Help on See Also: See Also: Links to other databases for Martyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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Ask about Martyite here :
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Print or Cut-and-Paste your Martyite Specimen Label here :

Martyite

Zn3V2O7(OH)2•2H2O
Dana No: 40.03.10.02 Strunz No: 08.FD.05
Locality:

 

Notes: