Kozoite-(La) Mineral Data


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General Kozoite-(La) Information
Help on Chemical Formula: Chemical Formula: La(CO3)(OH)
Help on Composition: Composition: Molecular Weight = 190.98 gm
   Strontium       0.92 %  Sr    1.09 % SrO
   Calcium         4.41 %  Ca    6.17 % CaO
   Lanthanum      29.82 %  La   34.97 % La2O3
   Praeseodymium   3.69 %  Pr    4.32 % Pr2O3
   Samarium        0.79 %  Sm    0.91 % Sm2O3
   Gadolinium      1.65 %  Gd    1.90 % Gd2O3
   Yttrium         3.26 %  Y     4.14 % Y2O3
   Hydrogen        0.65 %  H     5.85 % H2O
   Carbon          6.29 %  C    23.04 % CO2
   Neodymium      15.10 %  Nd   17.62 % Nd2O3
   Oxygen         33.43 %  O
                 ______        ______ 
                 100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: La0.41Ca0.21Nd0.2Y0.07Pr0.05Sr0.02Gd0.02Sm0.01(CO3)(OH)0.74·0.25(H2O)
Help on Environment: Environment: Occurs in cavities in an alkaline olivine basalt associated wth kozoite0(Nd). Ancylite group.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Mitsukoshi, Saga Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the La-dominant analog of kozoite-(Nd).
Help on Synonym: Synonym: IMA2002-054
 

Kozoite-(La) Image

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Kozoite-(La)   Kozoite-(Nd)

Comments: Backscatter electron image of polished section through a sperical aggregate showing the zonation form kosoite-(La) to kosolite-(Nd). (JMPS, v 98, p 138).
Location: Cavity in alkaline basalt near Mitsukoshi, Saga Prefecture, Japan. Scale: See Image.
© JMPS

Kozoite-(La) Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5856:1:0.8489
Help on Cell Dimensions: Cell Dimensions: a = 4.986, b = 8.513, c = 7.227, Z = 4; V = 306.76 Den(Calc)= 4.14
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmcn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.31(1)(110,020), 3.69(0.72)(111,021), 2.93(0.57)(121,102),2.33(0.5)(131), 2.06(0.48)(221), 1.994(0.35)(212), 2.64(0.3), 2.49(0.29),
 

Physical Properties of Kozoite-(La)

Help on Color: Color: Pale pinkish purple, White.
Help on Diaphaniety: Diaphaniety: Translucent
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Kozoite-(La)

Help on Optical Data: Optical Data: Biaxial (?)
  NCalc= 1.73 - from Gladstone-Dale relationship (KC = 0.1756) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Kozoite-(La)

Help on Electron Density: Electron Density:

relectron=3.77 gm/cc
note: rKozoite-(La) =4.14 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.04644
Boson Index = 0.95356
Help on Photoelectric: Photoelectric:

PEKozoite-(La) = 270.21 barns/electron
U=PEKozoite-(La) x relectron=1,020.00 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 49,692.11 (Gamma Ray American Petroleum Institute Units)

Kozoite-(La) 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) 612.10 ±153.03 grams of pure Kozoite-(La) .

Estimated Radioactivity from Kozoite-(La) - 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 / 7.73 cm 1,144,472 3.09E-05 49,692.11 16.34
100 gm / 3.59 cm 114,447 3.09E-06 4,969.21 1.63
10 gm / 1.66 cm 11,445 3.09E-07 496.92 0.16
1 gm / 7.73 mm 1,144 3.09E-08 49.69 0.02
0.1 gm / 3.59 mm 114 3.09E-09 4.97 0.00
0.01 gm / 1.66 mm 11 3.09E-10 0.50 0.00
0.001 gm / 0.77 mm 1 3.09E-11 0.05 0.00

Weight of pure Kozoite-(La) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.14 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 ( 2.55 % Th) From Sum REE Elements (51.05 % REE)
 

Kozoite-(La) Classification
Help on Dana Class: Dana Class: 16b.1.1.7 (16b)Carbonates - Hydroxyl or Halogen
  (16b.1)where (A)m (B)n (XO3)p Zq, with (m+n):p=1:1
  (16b.1.1)Ancylite group
 
16b.1.1.1 Ancylite-(Ce) SrCe(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m
 
16b.1.1.2 Calcio-ancylite-(Ce) CaCe(CO3)2(OH)·(H2O) P mmm 2/m 2/m 2/m
 
16b.1.1.3 Calcio-ancylite-(Nd) CaNd(CO3)2(OH)·(H2O) Pm m
 
16b.1.1.4 Gysinite-(Nd) Pb(Nd,La)(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m
 
16b.1.1.5 Ancylite-(La)! Sr(La,Ce)(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m
 
16b.1.1.6 Kozoite-(Nd)! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m
 
16b.1.1.7 Kozoite-(La) ! La(CO3)(OH) Pmcn 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: V/C.07-62 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 Kozoite-(La) Information
Help on References: References: NAME( AmMin, 89:894) PHYS. PROP.(AmMin, 89:894) OPTIC PROP.(AmMin, 89:894)
Help on See Also: See Also: Links to other databases for Kozoite-(La) :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Kozoite-(La)

La(CO3)(OH)
Dana No: 16b.1.1.7 Strunz No: V/C.07-62
Locality:

 

Notes:

 
 
   
 
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