Chernovite-(Ce) Mineral Data

Chernovite-(Ce) Mineral Data
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General Chernovite-(Ce) Information

Help on Chemical Formula: Chemical Formula: (Ce,Y)(AsO4)
Help on Composition: Composition: Molecular Weight = 266.23 gm
   Cerium   39.47 %  Ce   46.23 % Ce2O3
   Yttrium   8.35 %  Y    10.60 % Y2O3
   Arsenic  28.14 %  As   43.17 % As2O5
   Oxygen   24.04 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ce0.75Y0.25(AsO4)
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Ce dominant analog of chernovite-(Y).
 

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Chernovite-(Ce) Crystallography
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd
 

Physical Properties of Chernovite-(Ce)

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Colorless, Pale yellow.
Help on Density: Density: 4.5
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Chernovite-(Ce)

Help on Optical Data: Optical Data: NCalc= 1.7 - from Gladstone-Dale relationship (KC = 0.1545) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Chernovite-(Ce)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.00 gm/cc
note: Specific Gravity of Chernovite-(Ce) =4.50 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001153838
Boson Index = 0.9998846162
Help on Photoelectric: Photoelectric: PEChernovite-(Ce) = 236.67 barns/electron
U=PEChernovite-(Ce) x relectron= 946.07 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 37,401.20 (Gamma Ray American Petroleum Institute Units)
Concentration of Chernovite-(Ce) per GRapi unit = 26.74 (PPM)

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

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 813.25 ±203.31 grams of pure Chernovite-(Ce) .

Estimated Radioactivity from Chernovite-(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 / 7.52 cm 884,166 2.39E-05 37,401.20 12.30
100 gm / 3.49 cm 88,417 2.39E-06 3,740.12 1.23
10 gm / 1.62 cm 8,842 2.39E-07 374.01 0.12
1 gm / 7.52 mm 884 2.39E-08 37.40 0.01
0.1 gm / 3.49 mm 88 2.39E-09 3.74 0.00
0.01 gm / 1.62 mm 9 2.39E-10 0.37 0.00
0.001 gm / 0.75 mm 1 2.39E-11 0.04 0.00

Weight of pure Chernovite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.50 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 ( 1.97 % Th) From Sum REE Elements (39.47 % REE)
 

Chernovite-(Ce) Classification
Help on Dana Class: Dana Class: 37.00.00.00 (37)Phosphate Minerals
  (37.00)Without Dana Classification Numbers
  (37.00.00)Arsenate, Anhydrous
 
37.00.00.00 Arnhemite* (K,Na)2Mg2(P2O7)•5(H2O) Unk Hex
 
37.00.00.00 Arsenowaylandite* BiAl3(AsO4)2(OH)6 R 3m 3 2/m
 
37.00.00.00 Auroantimonate* AuSbO3 Ortho ? Ortho
 
37.00.00.00 Barium-zinc-alumopharmacosiderite* (Ba,K)0.5(Zn,Cu)0.5(Al,Fe)4(AsO4)3•5(H2O) I 42m 4 2m
 
37.00.00.00 Chernovite-(Ce)* (Ce,Y)(AsO4) I 41/amd 4/m 2/m 2/m
 
37.00.00.00 Churchite-(Dy)* (Dy,Sm,Gd,Nd)(PO4)•2(H2O) Mono
 
37.00.00.00 Gengenbachite KFe3(H2PO4)2(HPO4)4•6H2OorKFe3H8(PO4)6•6H2O P 63mc 6mm
 
37.00.00.00 IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m
 
37.00.00.00 IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 63/m 6/m 2/m 2/m
 
37.00.00.00 IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1
 
37.00.00.00 Kerstenite? PbSeO4(?) P nma 2/m 2/m 2/m
 
37.00.00.00 Krasnoselskite* CoWO4 P 2/c 2/m
 
37.00.00.00 Laubmannite? Fe3Fe6(PO4)4(OH)12 Unk Ortho
 
37.00.00.00 Oxiberaunite* (Fe,Mn)Fe5(PO4)4O(OH)4•6(H2O) Mono
 
37.00.00.00 Parwanite (Na,K)(Mg,Ca)4Al8(PO4)8(CO3)(OH)7•30H2O P 2, Pm, P 2/m, P 21, Mono
 
37.00.00.00 Pyrocoproite* (Mg(K,Na))2P2O7 Unk Mono
 
37.00.00.00 Pyrophosphite* K2CaP2O7 P 21/n 2/m
 
37.00.00.00 Zinclavendulan? NaCa(Zn,Cu)5(AsO4)4Cl•4-5(H2O) Unk Ortho
Help on Strunz Class: Strunz Class: 08.XX.00 08 - PHOSPHATES, ARSENATES, VANADATES
  08.X - Unclassified Strunz PHOSPHATES, ARSENATES, VANADATES
  08.XX -Arsenate, Anhydrous
 
08.XX.00 Arsenobismite? Bi2(AsO4)(OH)3 Unk Ortho
 
08.XX.00 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1
 
08.XX.00 Cheralite-(Ce)? (Ce,Ca,Th)(P,Si)O4 P 21/n 2/m
 
08.XX.00 Chernovite-(Ce)* (Ce,Y)(AsO4) I 41/amd 4/m 2/m 2/m
 
08.XX.00 Kerstenite? PbSeO4(?) P nma 2/m 2/m 2/m
 
08.XX.00 Laubmannite? Fe3Fe6(PO4)4(OH)12 Unk Ortho
 
08.XX.00 Spodiosite? Ca2(PO4)F Pbcm 2/m 2/m 2/m
 
08.XX.00 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4•5(H2O)(?) Unk Ortho
 
08.XX.00 Viseite Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O)(?) I a3d 4/m 3 2/m
 
08.XX.00 Vanuranylite? (H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O)(?) C 2/c ? 2/m
 
08.XX.00 Sodium-autunite Na2(UO2)2(PO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
 
08.XX.00 Sodium meta-autunite! Na2(UO2)2(PO4)2•6-8(H2O) P 4/nmm 4/m 2/m 2/m
 
08.XX.00 Slavkovite! Cu13(AsO4)6(AsO3OH)4•23(H2O) P1 1
 
08.XX.00 IMA2000-020! Fe4[AsO3OH]5[AsO2(OH)2]2•20(H2O) Ortho Ortho
 
08.XX.00 Lewisite! (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m
 
08.XX.00 Kamarizaite! Fe3(AsO4)2(OH)3•3H2O Pccm, Pcc2, Pcmm, Pcm21 Ortho
 
08.XX.00 Lapeyreite! Cu3O[AsO3(OH)]2•H2O C 2/m 2/m
 
08.XX.00 IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m
 
08.XX.00 IMA2009-002! Cu3(AsO4)2 P 21/c 2/m
 
08.XX.00 IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 63/m 6/m 2/m 2/m
 
08.XX.00 IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1
 

Other Chernovite-(Ce) Information
Help on See Also: See Also: Links to other databases for Chernovite-(Ce) :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Chernovite-(Ce) Specimen Label here :

Chernovite-(Ce)

(Ce,Y)(AsO4)
Dana No: 37.00.00.00 Strunz No: 08.XX.00
Locality:

 

Notes: