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Chukhrovite-(Y) Mineral Data

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General Chukhrovite-(Y) Information

Help on Chemical  Formula: Chemical Formula: Ca3(Y,Ce)Al2(SO4)F13•10(H2O)
Help on Composition: Composition: Molecular Weight = 799.10 gm
   Calcium   15.05 %  Ca   21.05 % CaO
   Cerium     4.38 %  Ce    5.13 % Ce2O3
   Yttrium    8.34 %  Y    10.60 % Y2O3
   Aluminum   6.75 %  Al   12.76 % Al2O3
   Hydrogen   2.52 %  H    22.54 % H2O
   Sulfur     4.01 %  S    10.02 % SO3
   Oxygen    28.03 %  O
   Fluorine  30.91 %  F    30.91 % F
               -   %   F   -13.01 % -O=F2    
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3Y0.75Ce0.25Al2(SO4)F13•10(H2O)
Help on Environment: Environment: Oxidation zone of a Mo�W deposit.
Help on IMA Status: IMA Status: Approved IMA 1960
Help on Locality: Locality: Kara-Oba Mo-�W deposit, Bet-Pak-Dal Desert, central Kazakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Fedor Vasilevich Chukhrov (1908�1988), Russian mineralogist, Director, Institute of Geology of Ore Deposits, Petrology, Mineralogy, and Geochemistry, Moscow, Russia.
Help on Synonym: Synonym: ICSD 100728
  PDF 14-61
 

Chukhrovite-(Y) Image

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  Chukhrovite-(Y)

Comments: White crystalline crust of chukhrovite-(Y) on matrix.
Location: Kara-Oba deposit, Betpakdala Desert, Central Kazakhstan. Scale: Not Given.
© Diederik Visser

Chukhrovite-(Y) Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 16.8, Z = 8; V = 4,741.63 Den(Calc)= 2.24
Help on Crystal System: Crystal System: Isometric - Diploidal H-M Symbol (2/m 3) Space Group: F d3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.834(1), 2.193(1), 3.261(0.9),
 

Physical Properties of Chukhrovite-(Y)

Help on Cleavage: Cleavage: {???} Indistinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 2.274 - 2.398, Average = 2.33
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Chukhrovite-(Y)

Help on Optical Data: Optical Data: Isotropic, n=1.44.
 

Calculated Properties of Chukhrovite-(Y)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.21 gm/cc
note: Specific Gravity of Chukhrovite-(Y) =2.24 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0006424104
Boson Index = 0.9993575896
Help on Photoelectric: Photoelectric: PEChukhrovite-(Y) = 32.93 barns/electron
U=PEChukhrovite-(Y) x relectron= 72.87 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,619.58 (Gamma Ray American Petroleum Institute Units)
Concentration of Chukhrovite-(Y) per GRapi unit = 216.47 (PPM)

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

Estimated Radioactivity from Chukhrovite-(Y) - mild
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 / 9.48 cm 98,191 2.65E-06 4,619.58 1.52
100 gm / 4.40 cm 9,819 2.65E-07 461.96 0.15
10 gm / 2.04 cm 982 2.65E-08 46.20 0.02
1 gm / 9.48 mm 98 2.65E-09 4.62 0.00
0.1 gm / 4.40 mm 10 2.65E-10 0.46 0.00
0.01 gm / 2.04 mm 1 2.65E-11 0.05 0.00
0.001 gm / 0.95 mm 0 2.65E-12 0.00 0.00

Weight of pure Chukhrovite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.24 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 ( 0.22 % Th) From Sum REE Elements ( 4.38 % REE)
 

Chukhrovite-(Y) Classification

Help on  Dana Class: Dana Class: 12.01.05.01 (12)Compound Halides
  (12.01)with miscellaneous anions
  (12.01.05)Chukhrovite Group
 
12.01.05.01 Chukhrovite-(Y) Ca3(Y,Ce)Al2(SO4)F13•10(H2O) F d3 2/m 3
 
12.01.05.02 Chukhrovite-(Ce) Ca3(Ce,Y)Al2(SO4)F13•10(H2O) F d3 2/m 3
 
12.01.05.03 Meniaylovite! Ca4AlSi(SO4)F13•12(H2O) F d3 2/m 3
 
12.01.05.04 Chukhrovite-(Nd)! Ca3(Nd,Y)Al2(SO4)F13•12(H2O) F d3 2/m 3
Help on  Strunz Class: Strunz Class: 03.CG.10 03 - HALIDES
  03.C - Complex Halides
  03.CG -Aluminofluorides with CO3, SO4, PO4
 
03.CG.10 Chukhrovite-(Ce) Ca3(Ce,Y)Al2(SO4)F13•10(H2O) F d3 2/m 3
 
03.CG.10 Chukhrovite-(Y) Ca3(Y,Ce)Al2(SO4)F13•10(H2O) F d3 2/m 3
 
03.CG.10 Meniaylovite! Ca4AlSi(SO4)F13•12(H2O) F d3 2/m 3
 
03.CG.10 Chukhrovite-(Nd)! Ca3(Nd,Y)Al2(SO4)F13•12(H2O) F d3 2/m 3
 

Other Chukhrovite-(Y) Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Chukhrovite-(Y) :
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 (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Chukhrovite-(Y)

Ca3(Y,Ce)Al2(SO4)F13•10(H2O)
Dana No: 12.01.05.01 Strunz No: 03.CG.10
Locality:

 

Notes:

 

 
   
 


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