Bulk Density (Electron Density)=3.66 gm/cc note: Specific Gravity of Galgenbergite-(Ce) =3.98 gm/cc.
Fermion Index:
Fermion Index = 0.02 Boson Index = 0.98
Photoelectric:
PEGalgenbergite-(Ce) = 248.93 barns/electron U=PEGalgenbergite-(Ce) x relectron= 911.28 barns/cc.
Radioactivity:
GRapi = 47,558.71 (Gamma Ray American Petroleum Institute Units)
Concentration of Galgenbergite-(Ce) per GRapi unit = 21.03 (PPM)
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 / 7.83 cm
1,085,844
2.93E-05
47,558.71
15.64
100 gm / 3.63 cm
108,584
2.93E-06
4,755.87
1.56
10 gm / 1.69 cm
10,858
2.93E-07
475.59
0.16
1 gm / 7.83 mm
1,086
2.93E-08
47.56
0.02
0.1 gm / 3.63 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 3.98 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)
Chemical Formula: 
- weak