General Kozoite-(Nd) Information
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Chemical Formula: |
(Nd,La,Sm,Pr)(CO3)(OH) |
Composition: |
Molecular Weight = 205.20 gm |
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Lanthanum 20.31 % La 23.82 % La2O3 |
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Praeseodymium 6.87 % Pr 8.04 % Pr2O3 |
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Samarium 3.66 % Sm 4.25 % Sm2O3 |
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Hydrogen 0.49 % H 4.39 % H2O |
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Carbon 5.85 % C 21.45 % CO2 |
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Neodymium 31.63 % Nd 36.89 % Nd2O3 |
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Oxygen 31.19 % O |
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______ ______ |
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100.00 % 98.83 % = TOTAL OXIDE |
Empirical Formula: |
Nd0.45La0.3Pr0.1Sm0.05(CO3)(OH) |
Environment: |
Post magmatic hydrothermal activity in an alkali olivine basalt from the last-stage lava of a volcanic sequence. Probable dehydration product of lanthanite-(Nd). End-member of the a ncylite group. |
IMA Status: |
Approved IMA 1999 (Dana # Added) |
Locality: |
Niikoba, Hizen-cho, Higashi Matsuura-gun, Saga Prefecture, Japan. Link to MinDat.org Location Data. |
Name Origin: |
Named for Kozo Hanashima (1925-1985), a chemist, and pioneer in the study of chemistry of rare earth minerals in Japan. |
Synonym: |
IMA1998-063 |
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Kozoite-(Nd) Image |
Images:
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Kozoite-(Nd)
Comments: White grain of kozoite-(Nd) in matrix.
Location: Niikoba, Hizen-cho, Higashi-Matsuura-gun, Saga Prefecture, Kyushu Island, Japan.
Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag |
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Images:
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Kozoite-(Nd)
Comments: Photomicrograph of the spherical aggregate composed of kosoite-(Nd). (JMPS, v 98, p 138).
Location: Cavity in alkaline basalt near Mitsukoshi, Saga Prefecture, Japan.
Scale: See Image.
© JMPS |
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Images:
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Kozoite-(Nd) Kozoite-(La)
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 |
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Kozoite-(Nd) Crystallography
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Axial Ratios: |
a:b:c =0.5843:1:0.8515 |
Cell Dimensions: |
a = 4.981, b = 8.524, c = 7.259, Z = 4; V = 308.20 Den(Calc)= 4.42 |
Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmcn |
X Ray Diffraction: |
By Intensity(I/Io): 4.29(1)(110), 2.93(0.89)(102), 2.06(0.78)(221),1.892(0.78), 2.333(0.78)(131), 1.994(0.75)(212), 3.69(0.72)(111), 4.3(0.72), 5.52(0.7), |
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Miyawaki R , Matsubara S , Yokoyama K , Takeuchi K , Nakai I , Terada Y , American Mineralogist , 85 (2000) p.1076-1081, Kozoite-(Nd), Nd(CO3)(OH), a new mineral in an alkali olivine basalt, from Hizen-cho, Saga Prefecture, Japan
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Physical Properties of Kozoite-(Nd)
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Color: |
Pale pinkish purple, White. |
Diaphaniety: |
Transparent |
Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
Luster: |
Vitreous - Dull |
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Optical Properties of Kozoite-(Nd)
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Gladstone-Dale: |
CI calc= -0.027 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1672,KC= 0.1628 |
Optical Data: |
Biaxial (?), a=1.698, g=1.78, bire=0.0820 |
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Calculated Properties of Kozoite-(Nd)
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Electron Density: |
relectron=3.97 gm/cc note: rKozoite-(Nd) =4.42 gm/cc. |
Fermion Index |
Fermion Index = 0.0763 Boson Index = 0.9237 |
Photoelectric: |
PEKozoite-(Nd) = 343.91 barns/electron U=PEKozoite-(Nd) x relectron=1,364.49 barns/cc. |
Radioactivity: |
GRapi = 60,011.26 (Gamma Ray American Petroleum Institute Units)
Kozoite-(Nd) 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)
506.85 ±126.71 grams of pure Kozoite-(Nd) .
Estimated Radioactivity from Kozoite-(Nd) - 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 / 7.56 cm |
1,403,946 |
3.79E-05 |
60,011.26 |
19.73 |
| 100 gm / 3.51 cm |
140,395 |
3.79E-06 |
6,001.13 |
1.97 |
| 10 gm / 1.63 cm |
14,039 |
3.79E-07 |
600.11 |
0.20 |
| 1 gm / 7.56 mm |
1,404 |
3.79E-08 |
60.01 |
0.02 |
| 0.1 gm / 3.51 mm |
140 |
3.79E-09 |
6.00 |
0.00 |
| 0.01 gm / 1.63 mm |
14 |
3.79E-10 |
0.60 |
0.00 |
| 0.001 gm / 0.76 mm |
1 |
3.79E-11 |
0.06 |
0.00 |
Weight of pure Kozoite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.42 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 ( 3.12 % Th) From Sum REE Elements (62.47 % REE)
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Kozoite-(Nd) Classification
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Dana Class: |
16b.1.1.6 (16b)Carbonates - Hydroxyl or Halogen |
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(16b.1)where (A)m (B)n (XO3)p Zq, with (m+n):p=1:1 |
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(16b.1.1)Ancylite group |
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16b.1.1.1 Ancylite-(Ce) SrCe(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m |
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16b.1.1.2 Calcio-ancylite-(Ce) CaCe(CO3)2(OH)·(H2O) P mmm 2/m 2/m 2/m |
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16b.1.1.3 Calcio-ancylite-(Nd) CaNd(CO3)2(OH)·(H2O) Pm m |
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16b.1.1.4 Gysinite-(Nd) Pb(Nd,La)(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m |
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16b.1.1.5 Ancylite-(La)! Sr(La,Ce)(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m |
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16b.1.1.6 Kozoite-(Nd) ! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m |
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16b.1.1.7 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m |
Strunz Class: |
V/C.07-61 V - Nitrates, Carbonates and Borates |
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V/C - Waterfree carbonates with unfamiliar anions |
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V/C.07 - Bastnäsite-(Y) - Mineevite-(Y) series |
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V/C.07-10 Bastnasite-(Y) Y(CO3)F P 62c 6 m2 |
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V/C.07-20 Bastnasite-(La) La(CO3)F P 62c 6 m2 |
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V/C.07-30 Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2 |
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V/C.07-40 Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2 |
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V/C.07-50 Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2 |
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V/C.07-60 Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2 |
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V/C.07-61 Kozoite-(Nd) (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m |
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V/C.07-62 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m |
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V/C.07-64 Horvathite-(Y)! NaY(CO3)F2 Pmcn 2/m 2/m 2/m |
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V/C.07-70 Parisite-(Ce) Ca(Ce,La)2(CO3)3F2 R 3 3 |
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V/C.07-80 Parisite-(Nd) Ca(Nd,Ce,La)2(CO3)3F2 R 3 3 |
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V/C.07-90 Rontgenite-(Ce) Ca2(Ce,La)3(CO3)5F3 R 3 3 |
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V/C.07-100 Synchysite-(Y) CaY(CO3)2F C 2/c 2/m |
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V/C.07-110 Synchysite-(Ce) CaCe(CO3)2F C 2/c 2/m |
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V/C.07-120 Synchysite-(Nd) CaNd(CO3)2F Unk Ortho |
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V/C.07-130 Huanghoite-(Ce) BaCe(CO3)2F R 3m 3 2/m |
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V/C.07-140 Cebaite-(Ce) Ba3Ce2(CO3)5F2 C 2/m or C 2 Mono |
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V/C.07-150 Cebaite-(Nd)! Ba3(Nd,Ce)2(CO3)5F2 Unk Mono |
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V/C.07-154 Kukharenkoite-(La)! Ba2(La,Ce)(CO3)3F P 21/m 2/m |
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V/C.07-155 Kukharenkoite-(Ce)! Ba2Ce(CO3)3F P 21/m 2/m |
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V/C.07-160 Zhonghuacerite-(Ce) Ba2Ce(CO3)3F P 21/m 2/m |
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V/C.07-170 Cordylite-(Ce) Ba(Ce,La)2(CO3)3F2 P 63/mmc 6/m 2/m 2/m |
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V/C.07-175 Lukechangite-(Ce)! Na3Ce2(CO3)4F P 63/mmc 6/m 2/m 2/m |
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V/C.07-190 Mineevite-(Y) Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2 P 63/m 6/m |
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V/C.07-200 Reederite-(Y)! Na15Y2(CO3)9(SO3F)Cl P 6 6 |
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V/C.07-210 Micheelsenite! (Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O) P 63 6 |
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Other Kozoite-(Nd) Information
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References: |
NAME( AmMin, Vol 85, p 1076) PHYS. PROP.(AmMin, Vol 85, p 1076) OPTIC PROP.(AmMin, Vol 85, p 1076) |
See Also: |
Links to other databases for Kozoite-(Nd) :
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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Print or Cut-and-Paste your Kozoite-(Nd) Specimen Label here :
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Kozoite-(Nd)
(Nd,La,Sm,Pr)(CO3)(OH)
Dana No: 16b.1.1.6 Strunz No: V/C.07-61
Locality:
Notes:
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