General Hydroxylbastnasite-(Nd) Information
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Chemical Formula: |
Nd(CO3)(OH) |
Composition: |
Molecular Weight = 221.26 gm |
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Hydrogen 0.46 % H 4.07 % H2O |
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Carbon 5.43 % C 19.89 % CO2 |
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Neodymium 65.19 % Nd 76.04 % Nd2O3 |
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Oxygen 28.92 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Nd(CO3)(OH) |
Environment: |
Red karstic bauxites. |
IMA Status: |
Approved IMA 1985 |
Locality: |
Niksic, Montenegro, Yugoslavia. Link to MinDat.org Location Data. |
Name Origin: |
Named as Nd end member in the hydroxylbastnasite series. |
Synonym: |
Hydroxylcarbonate-(Nd) |
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Images:
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Hydroxylbastnasite-(Nd) Crystallography
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Axial Ratios: |
a:c = 1:1.37964 |
Cell Dimensions: |
a = 7.191, c = 9.921, Z = 6; V = 444.29 Den(Calc)= 4.96 |
Crystal System: |
Hexagonal - Ditrigonal DipyramidalH-M Symbol (6 m2) Space Group: P 62c |
X Ray Diffraction: |
By Intensity(I/Io): 2.911(1), 4.95(0.88), 3.596(0.79), |
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Physical Properties of Hydroxylbastnasite-(Nd)
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Cleavage: |
[0001] Parting |
Color: |
White. |
Diaphaniety: |
Translucent |
Habit: |
Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks. |
Habit: |
Platy - Sheet forms (e.g. micas). |
Hardness: |
1-2 - Between Talc and Gypsum |
Luminescence: |
Non-fluorescent. |
Luster: |
Earthy (Dull) |
Streak: |
white |
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Optical Properties of Hydroxylbastnasite-(Nd)
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Gladstone-Dale: |
CI calc= 0.039 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1537,KC= 0.16 |
Optical Data: |
Uniaxial (+), w=1.715, e=1.81, bire=0.0950. |
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Calculated Properties of Hydroxylbastnasite-(Nd)
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Electron Density: |
relectron=4.44 gm/cc note: rHydroxylbastnasite-(Nd) =4.96 gm/cc. |
Fermion Index |
Fermion Index = 0.13424 Boson Index = 0.86576 |
Photoelectric: |
PEHydroxylbastnasite-(Nd) = 381.92 barns/electron U=PEHydroxylbastnasite-(Nd) x relectron=1,695.22 barns/cc. |
Radioactivity: |
GRapi = 62,228.22 (Gamma Ray American Petroleum Institute Units)
Hydroxylbastnasite-(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)
488.79 ±122.20 grams of pure Hydroxylbastnasite-(Nd) .
Estimated Radioactivity from Hydroxylbastnasite-(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 / 7.28 cm |
1,460,285 |
3.95E-05 |
62,228.22 |
20.46 |
| 100 gm / 3.38 cm |
146,029 |
3.95E-06 |
6,222.82 |
2.05 |
| 10 gm / 1.57 cm |
14,603 |
3.95E-07 |
622.28 |
0.20 |
| 1 gm / 7.28 mm |
1,460 |
3.95E-08 |
62.23 |
0.02 |
| 0.1 gm / 3.38 mm |
146 |
3.95E-09 |
6.22 |
0.00 |
| 0.01 gm / 1.57 mm |
15 |
3.95E-10 |
0.62 |
0.00 |
| 0.001 gm / 0.73 mm |
1 |
3.95E-11 |
0.06 |
0.00 |
Weight of pure Hydroxylbastnasite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.96 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 ( 3.26 % Th) From Sum REE Elements (65.19 % REE)
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Hydroxylbastnasite-(Nd) Classification
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Dana Class: |
16a.1.2.3 (16a)Carbonates - Hydroxyl or Halogen |
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(16a.1)in the Bastnasite/Shynchysite/Parasite Groups |
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(16a.1.2)Bastnasite Subgroup(Hydroxylbastnasite Series) |
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16a.1.2.1 Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2 |
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16a.1.2.2 Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2 |
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16a.1.2.3 Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2 |
Strunz Class: |
V/C.07-60 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 Hydroxylbastnasite-(Nd) Information
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References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Hydroxylbastnasite-(Nd) :
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
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Print or Cut-and-Paste your Hydroxylbastnasite-(Nd) Specimen Label here :
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Hydroxylbastnasite-(Nd)
Nd(CO3)(OH)
Dana No: 16a.1.2.3 Strunz No: V/C.07-60
Locality:
Notes:
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