Synchysite-(Nd) Mineral Data + Say SYNCHYSITE-(ND)


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General Synchysite-(Nd) Information
Help on Chemical Formula: Chemical Formula: CaNd(CO3)2F
Help on Composition: Composition: Molecular Weight = 323.33 gm
   Calcium    12.40 %  Ca   17.34 % CaO
   Carbon      7.43 %  C    27.22 % CO2
   Neodymium  44.61 %  Nd   52.03 % Nd2O3
   Oxygen     29.69 %  O
   Fluorine    5.88 %  F     5.88 % F
                -   %  F    -2.47 % -O=F2
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaNd(CO3)2F
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Straz block, Holicky deposit, Ceska Lepa, Bohimia, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for "confounding" having been mistaken for parisite and for the Nd end-member of the series.
 

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Synchysite-(Nd) Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5783:1:1.2951
Help on Cell Dimensions: Cell Dimensions: a = 4.039, b = 6.984, c = 9.045, Z = 2; V = 255.14 Den(Calc)= 4.21
Help on Crystal System: Crystal System: OrthorhombicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.52(1), 9.04(0.6), 2.77(0.35),
 

Physical Properties of Synchysite-(Nd)

Help on Cleavage: Cleavage: None
Help on Color: Color: Light violet, Light gray blue.
Help on Density: Density: 4.21
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white
 

Optical Properties of Synchysite-(Nd)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.052 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.052 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1591,KPDmeas= 0.1591,KC= 0.1679
Help on Optical Data: Optical Data: Biaxial (+), a=1.61, b=1.66, g=1.74, bire=0.1300
Help on Pleochroism (x): Pleochroism (x): light violet.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Synchysite-(Nd)

Help on Electron Density: Electron Density:

relectron=3.88 gm/cc
note: rSynchysite-(Nd) =4.21 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.09248
Boson Index = 0.90752
Help on Photoelectric: Photoelectric:

PESynchysite-(Nd) = 255.48 barns/electron
U=PESynchysite-(Nd) x relectron= 991.28 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 43,855.65 (Gamma Ray American Petroleum Institute Units)

Synchysite-(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) 693.56 ±173.39 grams of pure Synchysite-(Nd) .

Estimated Radioactivity from Synchysite-(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 / 7.68 cm 999,266 2.70E-05 43,855.65 14.42
100 gm / 3.57 cm 99,927 2.70E-06 4,385.56 1.44
10 gm / 1.66 cm 9,993 2.70E-07 438.56 0.14
1 gm / 7.68 mm 999 2.70E-08 43.86 0.01
0.1 gm / 3.57 mm 100 2.70E-09 4.39 0.00
0.01 gm / 1.66 mm 10 2.70E-10 0.44 0.00
0.001 gm / 0.77 mm 1 2.70E-11 0.04 0.00

Weight of pure Synchysite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.21 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 ( 2.23 % Th) From Sum REE Elements (44.61 % REE)
 

Synchysite-(Nd) Classification
Help on Dana Class: Dana Class: 16a.1.3.3 (16a)Carbonates - Hydroxyl or Halogen
  (16a.1)in the Bastnasite/Shynchysite/Parasite Groups
  (16a.1.3)Synchysite Subgroup
 
16a.1.3.1 Synchysite-(Ce) CaCe(CO3)2F C 2/c 2/m
 
16a.1.3.2 Synchysite-(Y) CaY(CO3)2F C 2/c 2/m
 
16a.1.3.3 Synchysite-(Nd) CaNd(CO3)2F Unk Ortho
Help on Strunz Class: Strunz Class: V/C.07-120 V - Nitrates, Carbonates and Borates
  V/C - Waterfree carbonates with unfamiliar anions
  V/C.07 - Bastnäsite-(Y) - Mineevite-(Y) series
 
V/C.07-10 Bastnasite-(Y) Y(CO3)F P 62c 6 m2
 
V/C.07-20 Bastnasite-(La) La(CO3)F P 62c 6 m2
 
V/C.07-30 Bastnasite-(Ce) Ce(CO3)F P 62c 6 m2
 
V/C.07-40 Hydroxylbastnasite-(La) La(CO3)(OH) C 2221 2 2 2
 
V/C.07-50 Hydroxylbastnasite-(Ce) Ce(CO3)(OH) P 62c 6 m2
 
V/C.07-60 Hydroxylbastnasite-(Nd) Nd(CO3)(OH) P 62c 6 m2
 
V/C.07-61 Kozoite-(Nd)! (Nd,La,Sm,Pr)(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-62 Kozoite-(La)! La(CO3)(OH) Pmcn 2/m 2/m 2/m
 
V/C.07-64 Horvathite-(Y)! NaY(CO3)F2 Pmcn 2/m 2/m 2/m
 
V/C.07-70 Parisite-(Ce) Ca(Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-80 Parisite-(Nd) Ca(Nd,Ce,La)2(CO3)3F2 R 3 3
 
V/C.07-90 Rontgenite-(Ce) Ca2(Ce,La)3(CO3)5F3 R 3 3
 
V/C.07-100 Synchysite-(Y) CaY(CO3)2F C 2/c 2/m
 
V/C.07-110 Synchysite-(Ce) CaCe(CO3)2F C 2/c 2/m
 
V/C.07-120 Synchysite-(Nd) CaNd(CO3)2F Unk Ortho
 
V/C.07-130 Huanghoite-(Ce) BaCe(CO3)2F R 3m 3 2/m
 
V/C.07-140 Cebaite-(Ce) Ba3Ce2(CO3)5F2 C 2/m or C 2 Mono
 
V/C.07-150 Cebaite-(Nd)! Ba3(Nd,Ce)2(CO3)5F2 Unk Mono
 
V/C.07-154 Kukharenkoite-(La)! Ba2(La,Ce)(CO3)3F P 21/m 2/m
 
V/C.07-155 Kukharenkoite-(Ce)! Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-160 Zhonghuacerite-(Ce) Ba2Ce(CO3)3F P 21/m 2/m
 
V/C.07-170 Cordylite-(Ce) Ba(Ce,La)2(CO3)3F2 P 63/mmc 6/m 2/m 2/m
 
V/C.07-175 Lukechangite-(Ce)! Na3Ce2(CO3)4F P 63/mmc 6/m 2/m 2/m
 
V/C.07-190 Mineevite-(Y) Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2 P 63/m 6/m
 
V/C.07-200 Reederite-(Y)! Na15Y2(CO3)9(SO3F)Cl P 6 6
 
V/C.07-210 Micheelsenite! (Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O) P 63 6
 

Other Synchysite-(Nd) Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Synchysite-(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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Synchysite-(Nd)

CaNd(CO3)2F
Dana No: 16a.1.3.3 Strunz No: V/C.07-120
Locality:

 

Notes:

 
 
   
 
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