General Gysinite-(Nd) Information
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Chemical Formula: |
Pb(Nd,La)(CO3)2(OH)·(H2O) |
Composition: |
Molecular Weight = 505.15 gm |
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Lanthanum 6.87 % La 8.06 % La2O3 |
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Hydrogen 0.60 % H 5.35 % H2O |
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Lead 41.02 % Pb 44.19 % PbO |
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Carbon 4.76 % C 17.42 % CO2 |
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Neodymium 21.42 % Nd 24.98 % Nd2O3 |
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Oxygen 25.34 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
PbNd0.75La0.25(CO3)2(OH)·(H2O) |
IMA Status: |
Approved IMA 1985 |
Locality: |
Link to MinDat.org Location Data. |
Synonym: |
ICSD 30968 |
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PDF 45-1402 |
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Search for Gysinite-(Nd) Images |
Images:
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Gysinite-(Nd) Crystallography
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Axial Ratios: |
a:b:c =0.5929:1:0.8529 |
Cell Dimensions: |
a = 5.04, b = 8.5, c = 7.25, Z = 2; V = 310.59 Den(Calc)= 5.40 |
Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmcn |
X Ray Diffraction: |
By Intensity(I/Io): 3.676(1), 4.326(1), 2.074(0.6), |
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Physical Properties of Gysinite-(Nd)
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Cleavage: |
None |
Color: |
Light pink, Red pink. |
Density: |
4.82 |
Diaphaniety: |
Transparent |
Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Hardness: |
4-4.5 - Between Fluorite and Apatite |
Luster: |
Vitreous - Greasy |
Streak: |
light pink |
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Optical Properties of Gysinite-(Nd)
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Gladstone-Dale: |
CI meas= -0.034 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.077 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1475,KPDmeas= 0.1653,KC= 0.1599 |
Optical Data: |
Biaxial (-), a=1.745, b=1.805, g=1.84, bire=0.0950, 2V(Calc)=72, 2V(Meas)=70. |
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Calculated Properties of Gysinite-(Nd)
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Electron Density: |
relectron=4.20 gm/cc note: rGysinite-(Nd) =4.82 gm/cc. |
Fermion Index |
Fermion Index = 0.13521 Boson Index = 0.86479 |
Photoelectric: |
PEGysinite-(Nd) = 884.77 barns/electron U=PEGysinite-(Nd) x relectron=3,718.83 barns/cc. |
Radioactivity: |
GRapi = 26,314.19 (Gamma Ray American Petroleum Institute Units)
Gysinite-(Nd) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Radioactivity from Gysinite-(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 / 7.34 cm |
633,697 |
1.71E-05 |
26,314.19 |
8.65 |
| 100 gm / 3.41 cm |
63,370 |
1.71E-06 |
2,631.42 |
0.87 |
| 10 gm / 1.58 cm |
6,337 |
1.71E-07 |
263.14 |
0.09 |
| 1 gm / 7.34 mm |
634 |
1.71E-08 |
26.31 |
0.01 |
| 0.1 gm / 3.41 mm |
63 |
1.71E-09 |
2.63 |
0.00 |
| 0.01 gm / 1.58 mm |
6 |
1.71E-10 |
0.26 |
0.00 |
| 0.001 gm / 0.73 mm |
1 |
1.71E-11 |
0.03 |
0.00 |
Weight of pure Gysinite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.82 gm/cc.*
Goverment Estimate of Average Annual Exposure (
360 mRem)
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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 ( 1.41 % Th) From Sum REE Elements (28.29 % REE)
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Gysinite-(Nd) Classification
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Dana Class: |
16b.1.1.4 (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/E.08-40 V - Nitrates, Carbonates and Borates |
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V/E - Water-bearing carbonates with unfamiliar anions |
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V/E.08 - Strontiodresserite - Dundasite series |
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V/E.08-05 Thomasclarkite-(Y)! (Na,Ce)(Y,REE)(HCO3)(OH)3·4(H2O) P 2 2 |
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V/E.08-10 Kamphaugite-(Y) Ca(Y,REE)(CO3)2(OH)2·3(H2O) P 41212 4 2 2 |
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V/E.08-20 Calcio-ancylite-(Ce) CaCe(CO3)2(OH)·(H2O) P mmm 2/m 2/m 2/m |
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V/E.08-25 Calcio-ancylite-(Nd) CaNd(CO3)2(OH)·(H2O) Pm m |
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V/E.08-28 Ancylite-(La)! Sr(La,Ce)(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m |
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V/E.08-30 Ancylite-(Ce) SrCe(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m |
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V/E.08-40 Gysinite-(Nd) Pb(Nd,La)(CO3)2(OH)·(H2O) Pmcn 2/m 2/m 2/m |
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V/E.08-50 Strontiodresserite (Sr,Ca)Al2(CO3)2(OH)4·(H2O) Pbmm 2/m 2/m 2/m |
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V/E.08-60 Dresserite BaAl2(CO3)2(OH)4·(H2O) Pbmm 2/m 2/m 2/m |
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V/E.08-70 Hydrodresserite BaAl2(CO3)2(OH)4·3(H2O) P1 1 |
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V/E.08-80 Montroyalite Sr4Al8(CO3)3(OH,F)26·10-11(H2O) Unk. Tri |
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V/E.08-90 Dundasite PbAl2(CO3)2(OH)4·(H2O) Pbmm 2/m 2/m 2/m |
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V/E.08-95 Petterdite! PbCr2(CO3)2(OH)4·H2O Pbnm 2/m 2/m 2/m |
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V/E.08-100 Barstowite Pb4(CO3)Cl6·(H2O) P 21/m 2/m |
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Other Gysinite-(Nd) Information
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References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Gysinite-(Nd) :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - EUROmin Project
4 -Google Images
5 -Google Scholar
6 -Handbook of Mineralogy (UofA)
7 -MinDAT
8 -MinMax(Deutsch)
9 -MinMax(English)
10 -Mineralienatlas (Deutsch)
11 -QUT Mineral Atlas
12 - WWW-MINCRYST
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Print or Cut-and-Paste your Gysinite-(Nd) Specimen Label here :
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Gysinite-(Nd)
Pb(Nd,La)(CO3)2(OH)·(H2O)
Dana No: 16b.1.1.4 Strunz No: V/E.08-40
Locality:
Notes:
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