Galgenbergite-(Ce) Mineral Data


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General Galgenbergite-(Ce) Information

Help on Chemical  Formula: Chemical Formula: Ca(REE)2(CO3)4·(H2O)
Help on Composition: Composition: Molecular Weight = 577.84 gm
   Calcium         6.87 %  Ca    9.61 % CaO
   Lanthanum      10.10 %  La   11.84 % La2O3
   Cerium         25.22 %  Ce   29.54 % Ce2O3
   Praeseodymium   2.93 %  Pr    3.42 % Pr2O3
   Hydrogen        0.35 %  H     3.12 % H2O
   Carbon          8.31 %  C    30.47 % CO2
   Neodymium      10.23 %  Nd   11.94 % Nd2O3
   Oxygen         35.99 %  O
                 ______        ______ 
                 100.00 %       99.93 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.99Ce1.04La0.42Nd0.41Pr0.12(CO3)4·(H2O)
Help on Environment: Environment: Small fissures in an albite-chlorite schist.
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: Galgenberg Tunnel, St. Leoben, Steiermark, Austria. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA1997-036
 

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Galgenbergite-(Ce) Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0003:1:1.9398
Help on Cell Dimensions: Cell Dimensions: a = 6.388, b = 6.386, c = 12.388, Z = 2; alpha = 96.54°, beta = 100.85°, gamma = 100.51° V = 484.82 Den(Calc)= 3.96
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.049(1)(101), 3.005(0.65)(004), 5.901(0.59)(011),3.899(0.49)(112), 3.125(0.45)(021), 4.468(0.38)(111), 4.695(0.38)(0
 

Physical Properties of Galgenbergite-(Ce)

Help on Cleavage: Cleavage: [001] Perfect
Help on Color: Color: Colorless, White.
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Splintery - Brittle fracture leaving splintery fragments.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Galgenbergite-(Ce)

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1776,KC= 0.1763
Help on Optical Data: Optical Data: Biaxial (-), a=1.635, b=1.725, g=1.75, bire=0.1150
 

Calculated Properties of Galgenbergite-(Ce)

Help on Electron Density: Electron Density:

relectron=3.64 gm/cc
note: rGalgenbergite-(Ce) =3.96 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.02223
Boson Index = 0.97777
Help on Photoelectric: Photoelectric:

PEGalgenbergite-(Ce) = 248.93 barns/electron
U=PEGalgenbergite-(Ce) x relectron= 906.70 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 47,558.64 (Gamma Ray American Petroleum Institute Units)

Galgenbergite-(Ce) 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) 639.56 ±159.89 grams of pure Galgenbergite-(Ce) .

Estimated Radioactivity from Galgenbergite-(Ce) - 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 / 7.84 cm 1,085,843 2.93E-05 47,558.64 15.64
100 gm / 3.64 cm 108,584 2.93E-06 4,755.86 1.56
10 gm / 1.69 cm 10,858 2.93E-07 475.59 0.16
1 gm / 7.84 mm 1,086 2.93E-08 47.56 0.02
0.1 gm / 3.64 mm 109 2.93E-09 4.76 0.00
0.01 gm / 1.69 mm 11 2.93E-10 0.48 0.00
0.001 gm / 0.78 mm 1 2.93E-11 0.05 0.00

Weight of pure Galgenbergite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.96 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 ( 2.42 % Th) From Sum REE Elements (48.48 % REE)
 

Galgenbergite-(Ce) Classification

Help on  Dana Class: Dana Class: 15.4.9.1 (15)Hydrated Carbonates
  (15.4)Dana Type
  (15.4.9)Dana Group
 
15.4.9.1 Galgenbergite-(Ce) ! Ca(REE)2(CO3)4·(H2O) P1 1
Help on  Strunz Class: Strunz Class: V/D.03-55 V - Nitrates, Carbonates and Borates
  V/D - Water-bearing carbonates without unfamiliar anions
  V/D.03 - Calkinsite-(Ce) - Lokkaite-(Y) series
 
V/D.03-02 Adamsite-(Y)! NaY(CO3)2·6(H2O) P1 1
 
V/D.03-05 Shomiokite-(Y) Na3Y(CO3)3·3(H2O) Pbn21 mm2
 
V/D.03-10 Calkinsite-(Ce) (Ce,La)2(CO3)3·4(H2O) P 21221 2 2 2
 
V/D.03-20 Lanthanite-(La) (La,Ce)2(CO3)3·8(H2O) Pbnb 2/m 2/m 2/m
 
V/D.03-30 Lanthanite-(Ce) (Ce,La)2(CO3)3·8(H2O) Pbnb 2/m 2/m 2/m
 
V/D.03-40 Lanthanite-(Nd) (Nd,La)2(CO3)3·8(H2O) Pbnb 2/m 2/m 2/m
 
V/D.03-45 Tengerite-(Y) Y2(CO3)3·2-3(H2O) Pb21m mm2
 
V/D.03-50 Kimuraite-(Y) CaY2(CO3)4·6(H2O) Imm2,I mmm,I 222,I 212121 Ortho
 
V/D.03-55 Galgenbergite-(Ce) Ca(REE)2(CO3)4·(H2O) P1 1
 
V/D.03-60 Lokkaite-(Y) CaY4(CO3)7·9(H2O) Pb2m mm2
 

Other Galgenbergite-(Ce) Information

Help on References: References: NAME( CanMin, 42:226) PHYS. PROP.(CanMin, 42:226) OPTIC PROP.(CanMin, 42:226)
Help on See Also: See Also: Links to other databases for Galgenbergite-(Ce) :
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 Galgenbergite-(Ce) Specimen Label here :

Galgenbergite-(Ce)

Ca(REE)2(CO3)4·(H2O)
Dana No: 15.4.9.1 Strunz No: V/D.03-55
Locality:

 

Notes:

 

 
   
 
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