Vanadiocarpholite  Mineral Data

Vanadiocarpholite Mineral Data

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General Vanadiocarpholite Information

Help on Chemical  Formula: Chemical Formula: Mn++V+++Al(Si2O6)(OH)4
Help on Composition: Composition: Molecular Weight = 353.06 gm
   Manganese  15.56 %  Mn   20.09 % MnO
   Aluminum    7.64 %  Al   14.44 % Al2O3
   Vanadium   14.43 %  V    21.23 % V2O3
   Silicon    15.91 %  Si   34.04 % SiO2
   Hydrogen    1.14 %  H    10.21 % H2O
   Oxygen     45.32 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+V3+AlSi2O6(OH)4
Help on Environment: Environment: Found in open fissures in a silicified wood sample from Mn-ore bearing cherts. Carpholite group
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the V-dominant analogue of carpholite.
Help on Synonym: Synonym: IMA2003-055
 

Vanadiocarpholite Image

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Vanadiocarpholite

Comments: Micro-fibrous tan crystals of vanadiocarpholite to 0.75mm.
Location: Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy. Scale: Picture size 2 mm.
© Tom Loomis / Dakota Matrix

Vanadiocarpholite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6687:1:0.2508
Help on Cell Dimensions: Cell Dimensions: a = 13.83, b = 20.681, c = 5.188, Z = 8; V = 1,483.86 Den(Calc)= 3.16
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: C cca
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.75(1), 2.641(0.26), 3.08(0.22),5.15(0.18), 3.46(0.15), 4.72(0.14),
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Basso R , Cabella R , Lucchetti G , Martinelli A , Palenzona A , European Journal of Mineralogy , 17 (2005) p.501-507, Vanadiocarpholite, Mn2+V3+Al(Si2O6)(OH)4, a new mineral, from the Molinello mine, northern Apennines, Italy, Note: sample VC, Locality: Molinello mine, northern Apennines, Italy

 

Physical Properties of Vanadiocarpholite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Pale straw yellow, Brown.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Luster: Luster: Vitreous - Silky
 

Optical Properties of Vanadiocarpholite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.065 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2189,KC= 0.2342
Ncalc = 1.74
Help on Optical Data: Optical Data: Biaxial (+), a=1.684, b=1.691, g=1.7, bire=0.0160
 

Calculated Properties of Vanadiocarpholite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.10 gm/cc
note: Specific Gravity of Vanadiocarpholite =3.16 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0080098526
Boson Index = 0.9919901474
Help on Photoelectric: Photoelectric: PEVanadiocarpholite = 7.49 barns/electron
U=PEVanadiocarpholite x rElectron Density= 23.19 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vanadiocarpholite is Not Radioactive
 

Vanadiocarpholite Classification

Help on  Dana Class: Dana Class: 65.01.05.06 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.01)with chains P=2
  (65.01.05)Carpholite group
 
65.01.05.01 Carpholite MnAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
65.01.05.02 Ferrocarpholite (Fe,Mg)Al2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
65.01.05.03 Magnesiocarpholite MgAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
65.01.05.04 Balipholite BaMg2LiAl3Si4O12(OH,F)8 C cca 2/m 2/m 2/m
 
65.01.05.05 Potassiccarpholite! (K,Na,[])(Li,Mn)2Al)4Si4O12(OH)4(F,OH)4 C cca 2/m 2/m 2/m
 
65.01.05.06 Vanadiocarpholite! MnVAl(Si2O6)(OH)4 C cca 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.DB.05 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DB -Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
 
09.DB.05 Carpholite MnAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
09.DB.05 Balipholite BaMg2LiAl3Si4O12(OH,F)8 C cca 2/m 2/m 2/m
 
09.DB.05 Ferrocarpholite (Fe,Mg)Al2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
09.DB.05 Magnesiocarpholite MgAl2Si2O6(OH)4 C cca 2/m 2/m 2/m
 
09.DB.05 Potassiccarpholite! (K,Na,[])(Li,Mn)2Al)4Si4O12(OH)4(F,OH)4 C cca 2/m 2/m 2/m
 
09.DB.05 Vanadiocarpholite! MnVAl(Si2O6)(OH)4 C cca 2/m 2/m 2/m
 

Other Vanadiocarpholite Information

Help on References: References: NAME( EurJMin v17:501) PHYS. PROP.(EurJMin v17:501)
Help on See Also: See Also: Links to other databases for Vanadiocarpholite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Vanadiocarpholite

Mn++V+++Al(Si2O6)(OH)4
Dana No: 65.01.05.06 Strunz No: 09.DB.05
Locality:

 

Notes: