Mineralogy Database

Kozoite-(La) Mineral Data

Search Webmineral :
  
Advertisment

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

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image

  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 - Dipyramidal H-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 Diaphaneity: Diaphaneity: 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: Bulk Density (Electron Density)=3.77 gm/cc
note: Specific Gravity of Kozoite-(La) =4.14 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
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 = 49,692.18 (Gamma Ray American Petroleum Institute Units)
Concentration of Kozoite-(La) per GRapi unit = 20.12 (PPM)

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 1,144,473 3.09E-05 49,692.18 16.34
100 gm / 3.59 cm 114,447 3.09E-06 4,969.22 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.01.01.07 (16b)Carbonates - Hydroxyl or Halogen
  (16b.01)where (A)m (B)n (XO3)p Zq, with (m+n):p=1:1
  (16b.01.01)Ancylite group
 
16b.01.01.01 Ancylite-(Ce) SrCe(CO3)2(OH)•(H2O) Pmcn 2/m 2/m 2/m
 
16b.01.01.02 Calcioancylite-(Ce) CaCe(CO3)2(OH)•(H2O) P mmm 2/m 2/m 2/m
 
16b.01.01.03 Calcioancylite-(Nd) CaNd(CO3)2(OH)•(H2O) Pm m
 
16b.01.01.04 Gysinite-(Nd) Pb(Nd,La)(CO3)2(OH)•(H2O) Pmcn 2/m 2/m 2/m
 
16b.01.01.05 Ancylite-(La)! Sr(La,Ce)(CO3)2(OH)•(H2O) Pmcn 2/m 2/m 2/m
 
16b.01.01.06 Kozoite-(Nd)! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m
 
16b.01.01.07 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 05.DC.05 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DC -With large cations
 
05.DC.05 Ancylite-(Ce) SrCe(CO3)2(OH)•(H2O) Pmcn 2/m 2/m 2/m
 
05.DC.05 Ancylite-(La)! Sr(La,Ce)(CO3)2(OH)•(H2O) Pmcn 2/m 2/m 2/m
 
05.DC.05 Gysinite-(Nd) Pb(Nd,La)(CO3)2(OH)•(H2O) Pmcn 2/m 2/m 2/m
 
05.DC.05 Calcioancylite-(Ce) CaCe(CO3)2(OH)•(H2O) P mmm 2/m 2/m 2/m
 
05.DC.05 Calcioancylite-(Nd) CaNd(CO3)2(OH)•(H2O) Pm m
 
05.DC.05 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m
 
05.DC.05 Kozoite-(Nd)! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m
 

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 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Kozoite-(La) using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Kozoite-(La) :

Ask about Kozoite-(La) 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 Kozoite-(La) Specimen Label here :

Kozoite-(La)

La(CO3)(OH)
Dana No: 16b.01.01.07 Strunz No: 05.DC.05
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.