Chernovite-(Ce) Mineral Data

Mineral of the Month Club - An Inexpensive Way to Enjoy Minerals

General Chernovite-(Ce) Information

Chemical Formula:

(Ce,Y)(AsO4)

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

Empirical Formula:

Ce_0.75Y_0.25(AsO₄)

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named as the Ce dominant analog of chernovite-(Y).

Search for Chernovite-(Ce) Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Chernovite-(Ce) Crystallography

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4₁/amd

Physical Properties of Chernovite-(Ce)

Cleavage:

{???} Perfect

Color:

Colorless, Pale yellow.

Density:

4.5

Diaphaneity:

Transparent

Hardness:

4-4.5 - Between Fluorite and Apatite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Chernovite-(Ce)

Optical Data:

NCalc= 1.7 - from Gladstone-Dale relationship (KC = 0.1545) where Ncalc=Dmeas*KC+1

Calculated Properties of Chernovite-(Ce)

Electron Density:

Bulk Density (Electron Density)=4.00 gm/cc
note: Specific Gravity of Chernovite-(Ce) =4.50 gm/cc.

Fermion Index:

Fermion Index = 0.0001153838
Boson Index = 0.9998846162

Photoelectric:

PE_{Chernovite-(Ce)}= 236.67 barns/electron
U=PE_{Chernovite-(Ce)} x r_electron= 946.07 barns/cc.

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

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

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

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 - Google Images
6 - Google Scholar
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Chernovite-(Ce) using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Chernovite-(Ce) :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Chernovite-(Ce) Mineral Data :

Ask about Chernovite-(Ce) here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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: