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Vanadoandrosite-(Ce) Mineral Data

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General Vanadoandrosite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: (Mn++,Ca)(REE)V+++AlMn++(Si2O7)(SiO4)O(OH)
Help on Composition: Composition: Molecular Weight = 580.77 gm
   Strontium   1.66 %  Sr    1.96 % SrO
   Calcium     4.07 %  Ca    5.70 % CaO
   Lanthanum   3.59 %  La    4.21 % La2O3
   Cerium      9.41 %  Ce   11.02 % Ce2O3
   Samarium    0.52 %  Sm    0.60 % Sm2O3
   Magnesium   0.13 %  Mg    0.21 % MgO
   Titanium    0.08 %  Ti    0.14 % TiO2
   Manganese   9.27 %  Mn   11.97 % MnO
   Aluminum    5.39 %  Al   10.18 % Al2O3
   Vanadium    9.74 %  V    14.32 % V2O3
   Iron        3.17 %  Fe    2.85 % FeO /  1.37 % Fe2O3
   Silicon    14.51 %  Si   31.04 % SiO2
   Hydrogen    0.17 %  H     1.55 % H2O
   Neodymium   2.48 %  Nd    2.90 % Nd2O3
   Oxygen     35.81 %  O
             ______        ______ 
             100.00 %      100.01 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+0.62Ca0.38Ce0.39La0.15Nd0.1Sm0.02Ca0.21Sr0.11V3+0.8Al0.16Mg0.03Ti0.01AlMn2+0.36 V3+0.31Fe2+0.23Fe3+0.1(OH)
Help on Environment: Environment: Found in and around quartz-rhodochrosite-sulphide veinlets cross-cutting the rhodochrosite ore in greenschist-facies Lower Carboniferous radiolarite. Vanadoandrosite-(Ce) has domina nt V+++ in M1 site. Epidote group
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Vielle Aure mining district, central Pyrenees, France Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the vanadiium analoge of androsite.
Help on Synonym: Synonym: IMA2004-015
 

Vanadoandrosite-(Ce) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.5458:1:1.7521
Help on Cell Dimensions: Cell Dimensions: a = 8.856, b = 5.729, c = 10.038, Z = 2; beta = 113.088° V = 468.50 Den(Calc)= 4.12
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
 

Physical Properties of Vanadoandrosite-(Ce)

Help on Cleavage: Cleavage: None
Help on Color: Color: Dark brown, Black.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Luster: Luster: Adamantine
Help on Streak: Streak: brown
 

Optical Properties of Vanadoandrosite-(Ce)

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.084 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1893,KC= 0.2067
Ncalc = 1.85
Help on Optical Data: Optical Data: Biaxial (+/-), a=1.74, g=1.82, bire=0.0800
 

Calculated Properties of Vanadoandrosite-(Ce)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.91 gm/cc
note: Specific Gravity of Vanadoandrosite-(Ce) =4.12 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEVanadoandrosite-(Ce) = 87.30 barns/electron
U=PEVanadoandrosite-(Ce) x relectron= 341.43 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 16,228.82 (Gamma Ray American Petroleum Institute Units)
Concentration of Vanadoandrosite-(Ce) per GRapi unit = 61.62 (PPM)

Vanadoandrosite-(Ce) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Radioactivity from Vanadoandrosite-(Ce) - weak
Specimen
Size
Weight/Volume
(Sphere)
*
Calculated
Activity
Bequerols
(Bq)
Calculated
Activity
Curies (Ci)
Estimated
Activity
GR(api)
Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 7.74 cm 359,012 9.70E-06 16,228.82 5.34
100 gm / 3.59 cm 35,901 9.70E-07 1,622.88 0.53
10 gm / 1.67 cm 3,590 9.70E-08 162.29 0.05
1 gm / 7.74 mm 359 9.70E-09 16.23 0.01
0.1 gm / 3.59 mm 36 9.70E-10 1.62 0.00
0.01 gm / 1.67 mm 4 9.70E-11 0.16 0.00
0.001 gm / 0.77 mm 0 9.70E-12 0.02 0.00

Weight of pure Vanadoandrosite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.12 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 0.80 % Th) From Sum REE Elements (16.00 % REE)
 

Vanadoandrosite-(Ce) Classification

Help on  Dana Class: Dana Class: 58.02.01c.10 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups
  (58.02)with cations in [6] and higher coordination; single and double groups (n=1,2)
  (58.02.01c)Epidote group (Allanite subgroup)
 
58.02.01c.01 Allanite-(Ce) (Ce,Ca,Y)2(Al,Fe)3(SiO4)3(OH) P 21/m 2/m
 
58.02.01c.02 Allanite-(La)! Ca(REE,Ca)Al2(Fe,Fe)(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
58.02.01c.03 Allanite-(Y) (Y,Ce,Ca)2(Al,Fe)3(SiO4)3(OH) P 21/m 2/m
 
58.02.01c.04 Dissakisite-(Ce) Ca(Ce,REE)(Mg,Fe)(Al,Fe)2Si3O12(OH) P 21/m 2/m
 
58.02.01c.05 Dissakisite-(La)! (Ca,Fe,Th,La)(La,REE,Ca)(Al,Cr,Ti)2(Mg,Fe,Al)Si3O12(OH,F)withLa>Ce P 21/m 2/m
 
58.02.01c.06 Manganiandrosite-(La)! (Mn,Ca)(La,Ce,Ca,Nd)AlMnMn(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
58.02.01c.07 Ferriallanite-(Ce)! CaCe(Fe,Fe,Al)3[SiO4][Si2O7]O(OH) P 21/m 2/m
 
58.02.01c.08 Vastmanlandite-(Ce)! (Ce,La)3CaAl2Mg2[Si2O7][SiO4]3F(OH)2 P 21/m 2/m
 
58.02.01c.09 Manganiandrosite-(Ce)! (Mn,Ca)(Ce,REE)AlMnMn(Si2O7)(SiO4)O(OH) P 21/m 2/m
 
58.02.01c.10 Vanadoandrosite-(Ce)! (Mn,Ca)(REE)VAlMn(Si2O7)(SiO4)O(OH) P 21/m 2/m
Help on  Strunz Class: Strunz Class: 09.BG.05b 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BG -Sorosilicates with mixed SiO4 and Si2O7 groups;
 
09.BG.05b Allanite-(La)! Ca(REE,Ca)Al2(Fe,Fe)(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
09.BG.05b Allanite-(Y) (Y,Ce,Ca)2(Al,Fe)3(SiO4)3(OH) P 21/m 2/m
 
09.BG.05b Allanite-(Ce) (Ce,Ca,Y)2(Al,Fe)3(SiO4)3(OH) P 21/m 2/m
 
09.BG.05b Manganiandrosite-(La)! (Mn,Ca)(La,Ce,Ca,Nd)AlMnMn(SiO4)(Si2O7)O(OH) P 21/m 2/m
 
09.BG.05b Dissakisite-(Ce) Ca(Ce,REE)(Mg,Fe)(Al,Fe)2Si3O12(OH) P 21/m 2/m
 
09.BG.05b Manganiandrosite-(Ce)! (Mn,Ca)(Ce,REE)AlMnMn(Si2O7)(SiO4)O(OH) P 21/m 2/m
 
09.BG.05b Vanadoandrosite-(Ce)! (Mn,Ca)(REE)VAlMn(Si2O7)(SiO4)O(OH) P 21/m 2/m
 
09.BG.05b Dissakisite-(La)! (Ca,Fe,Th,La)(La,REE,Ca)(Al,Cr,Ti)2(Mg,Fe,Al)Si3O12(OH,F)withLa>Ce P 21/m 2/m
 
09.BG.05b Ferriallanite-(Ce)! CaCe(Fe,Fe,Al)3[SiO4][Si2O7]O(OH) P 21/m 2/m
 
09.BG.05b Uedaite-(Ce)! MnCeAl2Fe(Si2O7)(SiO4)O(OH) P 21/m 2/m
 

Other Vanadoandrosite-(Ce) Information

Help on References: References: NAME( AmMin, v92:705) PHYS. PROP.(AmMin, v92:705) OPTIC PROP.(AmMin, v92:705)
Help on See Also: See Also: Links to other databases for Vanadoandrosite-(Ce) :
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 Vanadoandrosite-(Ce) Specimen Label here :

Vanadoandrosite-(Ce)

(Mn++,Ca)(REE)V+++AlMn++(Si2O7)(SiO4)O(OH)
Dana No: 58.02.01c.10 Strunz No: 09.BG.05b
Locality:

 

Notes:

 

 
   
 


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