Hydroxylbastnasite-(Ce) Mineral Data

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

Help on Chemical Formula: Chemical Formula: Ce(CO3)(OH)
Help on Composition: Composition: Molecular Weight = 217.13 gm
   Cerium    64.53 %  Ce   75.58 % Ce2O3
   Hydrogen   0.46 %  H     4.15 % H2O
   Carbon     5.53 %  C    20.27 % CO2
   Oxygen    29.47 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ce(CO3)(OH)
Help on IMA Status: IMA Status: Approved IMA 1964
Help on Locality: Locality: Unspecified Russian locality. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the hydroxyl analog of bastnasite-(Ce).
Help on Name Pronunciation: Name Pronunciation: Hydroxylbastnasite-(Ce) + Pronunciation Say HYDROXYLBASTNASITE-(CE)
Help on Synonym: Synonym: Hydroxyl-bastnasite-(Ce) - Renamed Hydroxylbastnasite-(Ce) by Mineralogical Record, v39 (2008), p131
 

Hydroxylbastnasite-(Ce) Image

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Hydroxylbastnasite-(Ce)

Comments: Orangy brown hexagonal tablet of hydroxylbastnasite-(Ce).
Location: Trimouns, Luzenac, France. Scale: See Image.
© Rruff Database

Hydroxylbastnasite-(Ce) Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.38035
Help on Cell Dimensions: Cell Dimensions: a = 7.23, c = 9.98, Z = 6; V = 451.79 Den(Calc)= 4.79
Help on Crystal System: Crystal System: Hexagonal - Ditrigonal DipyramidalH-M Symbol (6 m2) Space Group: P 62c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.92(1), 2.09(0.9), 3.59(0.9),
Click Here for Large Hydroxylbastnasite-(Ce) Structure Window Crystal Structure:

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Yang H , Dembowski R F , Conrad P G , Downs R T , American Mineralogist , 93 (2008) p.698-701, Crystal structure and Raman spectrum of hydroxyl-bastnasite-(Ce), CeCO3(OH), Note: changed Ce3(z) to .2579 according to authors, Locality: Trimouns, Luzenac, France

 

Physical Properties of Hydroxylbastnasite-(Ce)

Help on Cleavage: Cleavage: {1120} Imperfect
Help on Color: Color: Yellow, Dark brown, Colorless.
Help on Density: Density: 4.745
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Reniform - "Kidney like" in shape (e.g.. hematite).
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous - Greasy
 

Optical Properties of Hydroxylbastnasite-(Ce)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.037 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1701,KPDmeas= 0.1718,KC= 0.1657
Ncalc = 1.79
Help on Optical Data: Optical Data: Uniaxial (+), w=1.76, e=1.87, bire=0.1100.
 

Calculated Properties of Hydroxylbastnasite-(Ce)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.28 gm/cc
note: Specific Gravity of Hydroxylbastnasite-(Ce) =4.79 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0007506557
Boson Index = 0.9992493443
Help on Photoelectric: Photoelectric: PEHydroxylbastnasite-(Ce) = 333.53 barns/electron
U=PEHydroxylbastnasite-(Ce) x relectron=1,427.43 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 61,499.16 (Gamma Ray American Petroleum Institute Units)
Concentration of Hydroxylbastnasite-(Ce) per GRapi unit = 16.26 (PPM)

Hydroxylbastnasite-(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) 494.59 ±123.65 grams of pure Hydroxylbastnasite-(Ce) .

Estimated Radioactivity from Hydroxylbastnasite-(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 / 7.36 cm 1,445,472 3.91E-05 61,499.16 20.22
100 gm / 3.42 cm 144,547 3.91E-06 6,149.92 2.02
10 gm / 1.59 cm 14,455 3.91E-07 614.99 0.20
1 gm / 7.36 mm 1,445 3.91E-08 61.50 0.02
0.1 gm / 3.42 mm 145 3.91E-09 6.15 0.00
0.01 gm / 1.59 mm 14 3.91E-10 0.61 0.00
0.001 gm / 0.74 mm 1 3.91E-11 0.06 0.00

Weight of pure Hydroxylbastnasite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.79 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 ( 3.23 % Th) From Sum REE Elements (64.53 % REE)
 

Hydroxylbastnasite-(Ce) Classification
Help on Dana Class: Dana Class: 16a.01.02.01 (16a)Carbonates - Hydroxyl or Halogen
  (16a.01)in the Bastnasite/Shynchysite/Parasite Groups
  (16a.01.02)Bastnasite Subgroup(Hydroxylbastnasite Series)
 
16a.01.02.01 Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2
 
16a.01.02.02 Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2
 
16a.01.02.03 Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2
Help on Strunz Class: Strunz Class: 05.BD.20a 05 - CARBONATES (NITRATES)
  05.B - Carbonates with additional anions, without H2O
  05.BD -With rare-earth elements (REE)
 
05.BD.20a Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2
 
05.BD.20a Bastnasite-(La) La(CO3)F P 62c 6 m2
 
05.BD.20a Bastnasite-(Y) Y(CO3)F P 62c 6 m2
 
05.BD.20a Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2
 
05.BD.20a Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2
 
05.BD.20a Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2
 
05.BD.20a Thorbastnasite Th(Ca,Ce)(CO3)2F2•3(H2O) P 62c 6 m2
 

Other Hydroxylbastnasite-(Ce) Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Hydroxylbastnasite-(Ce) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (UofA)
6 - MinDAT
7 - MinMax(Deutsch)
8 - MinMax(English)
9 - Mineralienatlas (Deutsch)
10 - QUT Mineral Atlas
11 - Ruff.Info

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Hydroxylbastnasite-(Ce)

Ce(CO3)(OH)
Dana No: 16a.01.02.01 Strunz No: 05.BD.20a
Locality:

 

Notes: