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Gysinite-(Nd) Mineral Data

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General Gysinite-(Nd) Information

Help on Chemical  Formula: Chemical Formula: Pb(Nd,La)(CO3)2(OH)•(H2O)
Help on Composition: Composition: Molecular Weight = 505.15 gm
   Lanthanum   6.87 %  La    8.06 % La2O3
   Hydrogen    0.60 %  H     5.35 % H2O
   Lead       41.02 %  Pb   44.19 % PbO
   Carbon      4.76 %  C    17.42 % CO2
   Neodymium  21.42 %  Nd   24.98 % Nd2O3
   Oxygen     25.34 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbNd0.75La0.25(CO3)2(OH)•(H2O)
Help on Environment: Environment: Secondary mineral in the oxidized portions of rare-earth-bearing lead deposits.
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Originally found on a museum specimen labelled as coming from Shinkolobwe; however the associated minerals indicate the specimen is more likely from the Kasompi mine, both in Katanga P Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Marcel Gysin (1891-1974), Professor of Mineralogy, University of Geneva, Geneva, Switzerland.
Help on Name Pronunciation: Name Pronunciation: Gysinite-(Nd) Say GYSINITE-(ND)
Help on Synonym: Synonym: ICSD 30968
  PDF 45-1402

Gysinite-(Nd) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5929:1:0.8529
Help on Cell Dimensions: Cell Dimensions: a = 5.04, b = 8.5, c = 7.25, Z = 2; V = 310.59 Den(Calc)= 5.40
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): 3.676(1), 4.326(1), 2.074(0.6),

Physical Properties of Gysinite-(Nd)

Help on Cleavage: Cleavage: None
Help on Color: Color: Light pink, Red pink.
Help on Density: Density: 4.82
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: light pink

Optical Properties of Gysinite-(Nd)

Help on Gladstone-Dale: 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
Ncalc = 1.77 - 1.86
Help on Optical Data: Optical Data: Biaxial (-), a=1.745, b=1.805, g=1.84, bire=0.0950, 2V(Calc)=72, 2V(Meas)=70.

Calculated Properties of Gysinite-(Nd)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.20 gm/cc
note: Specific Gravity of Gysinite-(Nd) =4.82 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.13
Boson Index = 0.87
Help on Photoelectric: Photoelectric: PEGysinite-(Nd) = 884.77 barns/electron
U=PEGysinite-(Nd) x relectron=3,718.83 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 26,314.20 (Gamma Ray American Petroleum Institute Units)
Concentration of Gysinite-(Nd) per GRapi unit = 38.00 (PPM)

Gysinite-(Nd) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Radioactivity from Gysinite-(Nd) - weak
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 7.34 cm 633,697 1.71E-05 26,314.20 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) **
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)

Gysinite-(Nd) Classification

Help on  Dana Class: Dana Class: 16b.01.01.04 (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 Gysinite-(Nd) Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Gysinite-(Nd) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Dana No: 16b.01.01.04 Strunz No: 05.DC.05





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