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Calculated Radioactivity
See Help on Radioactivity for background on the calculation. Legend
Click Here For Mineral species sorted by Radioactive Strength.
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| Relative Activity |
Mineral Name | Calculated Activity Becquerel/kilogram |
Calculated Activity Curie/gram |
Estimate Activity GR(api) |
Estimate Activity mRem/hr per gram |
 Weak - Low level of Radioactivity, may show on average radiation equipment.*Missing Thorium content - estimated from Rare Earth Element concentration. |
Hundholmenite-(Y) | 641,815 /kg | 1.73E-8 /g | 28,166.0 | 0.009 /g |
 Very Radioactive, limit exposure, handling and use secure storage. |
Huttonite | 32,067,840 /kg | 8.67E-7 /g | 1,281,208.9 | 0.421 /g |
 Mild - Very low level of Radioactivity, no special precautions needed. |
Hyalophane | 2,939 /kg | 7.94E-11 /g | 135.7 | 0.000 /g |
 Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Hyalotekite | 224 /kg | 6.05E-12 /g | 9.7 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Hydroastrophyllite | 488 /kg | 1.32E-11 /g | 22.7 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Hydrobiotite | 764 /kg | 2.06E-11 /g | 36.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Hydrodelhayelite | 1,563 /kg | 4.22E-11 /g | 75.5 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Hydroxylbastnasite-(Ce) | 1,445,472 /kg | 3.91E-8 /g | 61,489.4 | 0.020 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Hydroxylbastnasite-(La) | 1,440,992 /kg | 3.89E-8 /g | 60,998.2 | 0.020 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Hydroxylbastnasite-(Nd) | 1,460,256 /kg | 3.95E-8 /g | 62,209.4 | 0.020 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Ianthinite | 140,121,200 /kg | 3.79E-6 /g | 5,528,918.0 | 1.818 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Ikranite | 45,133 /kg | 1.22E-9 /g | 2,105.5 | 0.001 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. |
Ilimaussite-(Ce) | 462,425 /kg | 1.25E-8 /g | 20,359.9 | 0.007 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Illite | 1,824 /kg | 4.93E-11 /g | 87.4 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Ilmajokite | 114,688 /kg | 3.1E-9 /g | 5,481.5 | 0.002 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
IMA2007-015 | 1,270 /kg | 3.43E-11 /g | 59.4 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
IMA2008-006 | 1,033 /kg | 2.79E-11 /g | 48.6 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
IMA2008-022 | 140,121,200 /kg | 3.79E-6 /g | 5,528,918.0 | 1.818 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
IMA2008-024 | 384,640 /kg | 1.04E-8 /g | 17,508.7 | 0.006 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
IMA2008-035 | 1,351,616 /kg | 3.65E-8 /g | 57,649.1 | 0.019 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
IMA2008-065 | 2,160 /kg | 5.84E-11 /g | 101.4 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
IMA2009-001 | 352,717 /kg | 9.53E-9 /g | 15,906.6 | 0.005 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
IMA2009-004 | 773 /kg | 2.09E-11 /g | 35.7 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
IMA2009-005 | 232,447 /kg | 6.28E-9 /g | 10,337.4 | 0.003 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
IMA2009-008 | 102,638,600 /kg | 2.77E-6 /g | 4,295,962.9 | 1.412 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
IMA2009-009 | 1,376 /kg | 3.72E-11 /g | 64.4 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
IMA2009-013 | 1,263,584 /kg | 3.42E-8 /g | 54,006.9 | 0.018 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
IMA2009-015 | 860,384 /kg | 2.33E-8 /g | 36,165.0 | 0.012 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Innelite | 182 /kg | 4.92E-12 /g | 7.9 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Iquiqueite | 2,424 /kg | 6.55E-11 /g | 114.9 | 0.000 /g |
 Strong - Noticeable Radioactivity, limit exposure and handling. |
Iraqite-(La) | 4,449,437 /kg | 1.2E-7 /g | 202,225.4 | 0.066 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Iriginite | 67,841,000 /kg | 1.83E-6 /g | 2,859,700.8 | 0.940 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Ishikawaite | 43,407,500 /kg | 1.17E-6 /g | 1,807,775.4 | 0.594 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Isolueshite | 614,656 /kg | 1.66E-8 /g | 26,438.5 | 0.009 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Ivanyukite-K | 3,060 /kg | 8.27E-11 /g | 146.0 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. |
Iwashiroite-(Y) | 1,692,796 /kg | 4.58E-8 /g | 70,238.5 | 0.023 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Jachymovite | 124,906,200 /kg | 3.38E-6 /g | 5,090,015.6 | 1.673 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Jarosite | 2,363 /kg | 6.39E-11 /g | 111.0 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Jeppeite | 2,215 /kg | 5.99E-11 /g | 98.5 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Jinshajiangite | 600 /kg | 1.62E-11 /g | 27.2 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Joaquinite-(Ce) | 442,176 /kg | 1.2E-8 /g | 19,303.8 | 0.006 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Johannite | 87,495,200 /kg | 2.36E-6 /g | 3,755,396.7 | 1.235 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Johillerite | 58 /kg | 1.57E-12 /g | 2.6 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Johnsenite-(Ce) | 140,168 /kg | 3.79E-9 /g | 6,393.5 | 0.002 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Johnwalkite | 2,215 /kg | 5.99E-11 /g | 101.1 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Joliotite | 116,385,800 /kg | 3.15E-6 /g | 4,783,582.3 | 1.573 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Jonesite | 970 /kg | 2.62E-11 /g | 43.4 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kafehydrocyanite | 11,217 /kg | 3.03E-10 /g | 531.0 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Kahlerite | 79,493,900 /kg | 2.15E-6 /g | 3,402,945.4 | 1.119 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kainite | 4,757 /kg | 1.29E-10 /g | 229.2 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kainosite-(Y) | 236,096 /kg | 6.38E-9 /g | 10,811.0 | 0.004 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kalborsite | 7,181 /kg | 1.94E-10 /g | 338.5 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kaliborite | 1,651 /kg | 4.46E-11 /g | 79.4 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kalicinite | 11,832 /kg | 3.2E-10 /g | 562.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kalifersite | 1,848 /kg | 4.99E-11 /g | 87.8 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kalinite | 2,594 /kg | 7.01E-11 /g | 128.8 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kaliophilite | 7,490 /kg | 2.02E-10 /g | 351.7 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kalipyrochlore | 736 /kg | 1.99E-11 /g | 33.3 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kalistrontite | 6,618 /kg | 1.79E-10 /g | 302.8 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kalsilite | 7,490 /kg | 2.02E-10 /g | 351.7 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kamchatkite | 2,503 /kg | 6.76E-11 /g | 114.3 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Kamitugaite | 101,510,900 /kg | 2.74E-6 /g | 4,167,771.2 | 1.370 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kamotoite-(Y) | 95,303,528 /kg | 2.58E-6 /g | 3,986,173.2 | 1.311 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kamphaugite-(Y) | 298,540 /kg | 8.07E-9 /g | 13,668.3 | 0.004 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kapitsaite-(Y) | 45,659 /kg | 1.23E-9 /g | 1,993.0 | 0.001 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kapustinite | 617,560 /kg | 1.67E-8 /g | 28,681.4 | 0.009 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Karnasurtite-(Ce) | 2,768,640 /kg | 7.48E-8 /g | 123,727.4 | 0.041 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Karupmollerite-Ca | 430 /kg | 1.16E-11 /g | 20.1 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Kasolite | 72,530,800 /kg | 1.96E-6 /g | 2,892,245.0 | 0.951 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Katayamalite | 851 /kg | 2.3E-11 /g | 40.1 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Katophorite | 376 /kg | 1.02E-11 /g | 17.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kazakovite | 182 /kg | 4.92E-12 /g | 8.5 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Keiviite-(Y) | 499,296 /kg | 1.35E-8 /g | 21,747.0 | 0.007 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Keiviite-(Yb) | 1,231,328 /kg | 3.33E-8 /g | 51,771.2 | 0.017 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kemmlitzite | 242,592 /kg | 6.56E-9 /g | 11,101.2 | 0.004 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kentbrooksite | 663,846 /kg | 1.79E-8 /g | 29,692.4 | 0.010 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Khanneshite | 153,440 /kg | 4.15E-9 /g | 6,818.6 | 0.002 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Khibinskite | 7,017 /kg | 1.9E-10 /g | 320.6 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Khristovite-(Ce) | 627,631 /kg | 1.7E-8 /g | 28,152.4 | 0.009 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kinoshitalite | 976 /kg | 2.64E-11 /g | 44.6 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Kivuite | 103,533,200 /kg | 2.8E-6 /g | 4,263,971.0 | 1.402 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Klochite | 997 /kg | 2.69E-11 /g | 46.4 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Klyuchevskite | 4,642 /kg | 1.25E-10 /g | 214.5 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Klyuchevskite-Duplicate | 4,554 /kg | 1.23E-10 /g | 210.1 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Knasibfite | 5,057 /kg | 1.37E-10 /g | 230.7 | 0.000 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Kobeite-(Y) | 13,335,500 /kg | 3.6E-7 /g | 584,022.4 | 0.192 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kochite | 14,336 /kg | 3.87E-10 /g | 660.9 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kokchetavite | 4,254 /kg | 1.15E-10 /g | 200.8 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kosnarite | 2,336 /kg | 6.31E-11 /g | 105.4 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kostylevite | 5,699 /kg | 1.54E-10 /g | 263.7 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kozoite-(La) | 1,143,615 /kg | 3.09E-8 /g | 49,613.7 | 0.016 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kozoite-(Nd) | 1,403,528 /kg | 3.79E-8 /g | 59,974.7 | 0.020 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Krausite | 3,881 /kg | 1.05E-10 /g | 182.9 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kremersite | 1,988 /kg | 5.37E-11 /g | 93.4 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Kuannersuite-(Ce) | 121,519 /kg | 3.28E-9 /g | 5,113.1 | 0.002 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kukharenkoite-(Ce) | 511,168 /kg | 1.38E-8 /g | 21,328.9 | 0.007 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Kukharenkoite-(La) | 3,772,236 /kg | 1.02E-7 /g | 157,100.0 | 0.052 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Kuliokite-(Y) | 137,355 /kg | 3.71E-9 /g | 6,077.0 | 0.002 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kupletskite | 1,991 /kg | 5.38E-11 /g | 91.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kupletskite-(Cs) | 406 /kg | 1.1E-11 /g | 18.3 | 0.000 /g |
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