Parisite-(Ce) Mineral Data + Say PARISITE-(CE)

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General Parisite-(Ce) Information
Help on Chemical Formula: Chemical Formula: Ca(Ce,La)2(CO3)3F2
Help on Composition: Composition: Molecular Weight = 537.24 gm
   Calcium     7.46 %  Ca   10.44 % CaO
   Lanthanum  23.27 %  La   27.29 % La2O3
   Cerium     28.69 %  Ce   33.60 % Ce2O3
   Carbon      6.71 %  C    24.58 % CO2
   Oxygen     26.80 %  O
   Fluorine    7.07 %  F     7.07 % F
                -   %  F    -2.98 % -O=F2
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaCe1.1La0.9(CO3)3F2
Help on Environment: Environment: In calcite veins in hydrothermal deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1835
Help on Locality: Locality: Emerald mines, Muso, columbia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for J. J. Paris, mine proprietor at Muzo, north of Bogota, Columbia.
 

Parisite-(Ce) Image

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Parisite-(Ce)

Comments: Brown crystals of parisite-(Ce) in matrix.
Location: Narssarssuk, Igaliko, Greenland. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag
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Parisite-(Ce)

Comments: Columnar, hexagonal crystal of orangy brown parisite-(Ce) on matrix.
Location: Somewhere near Boyaca, Colombia. Scale: Scale not given.
© Diego Rodriguez Acosta

Parisite-(Ce) Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.96742
Help on Cell Dimensions: Cell Dimensions: a = 7.1248, c = 14.0175, Z = 3; V = 616.24 Den(Calc)= 4.34
Help on Crystal System: Crystal System: Trigonal - PyramidalH-M Symbol (3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.562(1), 2.833(0.8), 4.673(0.55),
Help on Forms: Forms:

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Forms: [ 1 1 1] [ 1 0 1] [ 0 0 1]

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Donnay G , Donnay J D H , American Mineralogist , 38 (1953) p.932-963, The crystallography of bastnaesite, parasite, roentgenite, and synchisite

View Additional jPOWD Structure files for Parisite-(Ce)
[1]
 

Physical Properties of Parisite-(Ce)

Help on Cleavage: Cleavage: [0001] Distinct
Help on Color: Color: Brown, Brownish yellow, Grayish yellow, Yellow.
Help on Density: Density: 4.36
Help on Diaphaniety: Diaphaniety: Transparent to translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Greasy
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: white
 

Optical Properties of Parisite-(Ce)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1651,KPDmeas= 0.1643,KC= 0.1659
Help on Optical Data: Optical Data: Uniaxial (+), w=1.676, e=1.757, bire=0.0810.
 

Calculated Properties of Parisite-(Ce)

Help on Electron Density: Electron Density:

relectron=3.93 gm/cc
note: rParisite-(Ce) =4.34 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.00117
Boson Index = 0.99883
Help on Photoelectric: Photoelectric:

PEParisite-(Ce) = 258.03 barns/electron
U=PEParisite-(Ce) x relectron=1,013.44 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 50,156.22 (Gamma Ray American Petroleum Institute Units)

Parisite-(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) 606.44 ±151.61 grams of pure Parisite-(Ce) .

Estimated Radioactivity from Parisite-(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 / 7.61 cm 1,163,860 3.15E-05 50,156.22 16.49
100 gm / 3.53 cm 116,386 3.15E-06 5,015.62 1.65
10 gm / 1.64 cm 11,639 3.15E-07 501.56 0.16
1 gm / 7.61 mm 1,164 3.15E-08 50.16 0.02
0.1 gm / 3.53 mm 116 3.15E-09 5.02 0.00
0.01 gm / 1.64 mm 12 3.15E-10 0.50 0.00
0.001 gm / 0.76 mm 1 3.15E-11 0.05 0.00

Weight of pure Parisite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.34 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 ( 2.60 % Th) From Sum REE Elements (51.96 % REE)
 

Parisite-(Ce) Classification
Help on Dana Class: Dana Class: 16a.1.5.1 (16a)Carbonates - Hydroxyl or Halogen
  (16a.1)in the Bastnasite/Shynchysite/Parasite Groups
  (16a.1.5)Parisite Subgroup
 
16a.1.5.1 Parisite-(Ce) Ca(Ce,La)2(CO3)3F2 R 3 3
 
16a.1.5.2 Parisite-(Nd) Ca(Nd,Ce,La)2(CO3)3F2 R 3 3
Help on Strunz Class: Strunz Class: V/C.07-70 V - Nitrates, Carbonates and Borates
  V/C - Waterfree carbonates with unfamiliar anions
  V/C.07 - Bastnäsite-(Y) - Mineevite-(Y) series
 
V/C.07-10 Bastnasite-(Y) Y(CO3)F P 62c 6 m2
 
V/C.07-20 Bastnasite-(La) La(CO3)F P 62c 6 m2
 
V/C.07-30 Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2
 
V/C.07-40 Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2
 
V/C.07-50 Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2
 
V/C.07-60 Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2
 
V/C.07-61 Kozoite-(Nd)! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-62 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-64 Horvathite-(Y)! NaY(CO3)F2 Pmcn 2/m 2/m 2/m
 
V/C.07-70 Parisite-(Ce) Ca(Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-80 Parisite-(Nd) Ca(Nd,Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-90 Rontgenite-(Ce) Ca2(Ce,La)3(CO3)5F3 R 3 3
 
V/C.07-100 Synchysite-(Y) CaY(CO3)2F C 2/c 2/m
 
V/C.07-110 Synchysite-(Ce) CaCe(CO3)2F C 2/c 2/m
 
V/C.07-120 Synchysite-(Nd) CaNd(CO3)2F Unk Ortho
 
V/C.07-130 Huanghoite-(Ce) BaCe(CO3)2F R 3m 3 2/m
 
V/C.07-140 Cebaite-(Ce) Ba3Ce2(CO3)5F2 C 2/m or C 2 Mono
 
V/C.07-150 Cebaite-(Nd)! Ba3(Nd,Ce)2(CO3)5F2 Unk Mono
 
V/C.07-154 Kukharenkoite-(La)! Ba2(La,Ce)(CO3)3F P 21/m 2/m
 
V/C.07-155 Kukharenkoite-(Ce)! Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-160 Zhonghuacerite-(Ce) Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-170 Cordylite-(Ce) Ba(Ce,La)2(CO3)3F2 P 63/mmc 6/m 2/m 2/m
 
V/C.07-175 Lukechangite-(Ce)! Na3Ce2(CO3)4F P 63/mmc 6/m 2/m 2/m
 
V/C.07-190 Mineevite-(Y) Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2 P 63/m 6/m
 
V/C.07-200 Reederite-(Y)! Na15Y2(CO3)9(SO3F)Cl P 6 6
 
V/C.07-210 Micheelsenite! (Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O) P 63 6
 

Other Parisite-(Ce) Information
Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Parisite-(Ce) :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas

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Parisite-(Ce)

Ca(Ce,La)2(CO3)3F2
Dana No: 16a.1.5.1 Strunz No: V/C.07-70
Locality:

 

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