Estimated Radioactivity from Kahlerite - very strong
Specimen Size Weight/Volume (Sphere) *
Calculated Activity Becquerels (Bq)
Calculated Activity Curies (Ci)
Estimated Activity GR(api)
Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 8.45 cm
79,497,752
2.15E-03
3,404,510.82
1,119.29
100 gm / 3.92 cm
7,949,775
2.15E-04
340,451.08
111.93
10 gm / 1.82 cm
794,978
2.15E-05
34,045.11
11.19
1 gm / 8.45 mm
79,498
2.15E-06
3,404.51
1.12
0.1 gm / 3.92 mm
7,950
2.15E-07
340.45
0.11
0.01 gm / 1.82 mm
795
2.15E-08
34.05
0.01
0.001 gm / 0.84 mm
79
2.15E-09
3.40
0.00
Weight of pure Kahlerite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.17 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