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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 |
 Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kuzmenkoite-Mn | 1,836 /kg | 4.96E-11 /g | 86.4 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Kuzmenkoite-Zn | 1,442 /kg | 3.9E-11 /g | 67.7 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Labuntsovite-Fe | 2,106 /kg | 5.69E-11 /g | 97.9 | 0.000 /g |
 Mild - Very low level of Radioactivity, no special precautions needed. |
Labuntsovite-Mg | 2,185 /kg | 5.91E-11 /g | 101.9 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Labuntsovite-Mn | 1,803 /kg | 4.87E-11 /g | 83.6 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Labyrinthite | 5,207 /kg | 1.41E-10 /g | 242.6 | 0.000 /g |
 Strong - Noticeable Radioactivity, limit exposure and handling. |
Lakargiite | 3,696,740 /kg | 9.99E-8 /g | 164,134.1 | 0.054 /g |
 Very Radioactive, limit exposure, handling and use secure storage. |
Lakebogaite | 62,274,100 /kg | 1.68E-6 /g | 2,741,366.6 | 0.901 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lalondeite | 179 /kg | 4.84E-12 /g | 8.5 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Landauite | 136 /kg | 3.68E-12 /g | 6.1 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Langbeinite | 5,709 /kg | 1.54E-10 /g | 269.9 | 0.000 /g |
 Weak - Low level of Radioactivity, may show on average radiation equipment.*Missing Thorium content - estimated from Rare Earth Element concentration. |
Lanthanite-(Ce) | 1,037,120 /kg | 2.8E-8 /g | 46,691.6 | 0.015 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Lanthanite-(La) | 1,034,656 /kg | 2.8E-8 /g | 46,503.3 | 0.015 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Lanthanite-(Nd) | 1,049,440 /kg | 2.84E-8 /g | 47,261.5 | 0.016 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Laplandite-(Ce) | 330,400 /kg | 8.93E-9 /g | 15,339.3 | 0.005 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Larisaite | 106,540,970 /kg | 2.88E-6 /g | 4,333,904.6 | 1.425 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lasalite | 115 /kg | 3.11E-12 /g | 5.4 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Latiumite | 1,791 /kg | 4.84E-11 /g | 84.5 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lecontite | 1,657 /kg | 4.48E-11 /g | 81.4 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Lehnerite | 91,719,600 /kg | 2.48E-6 /g | 3,900,823.7 | 1.282 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Leightonite | 3,357 /kg | 9.07E-11 /g | 157.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lemmleinite-Ba | 1,751 /kg | 4.73E-11 /g | 80.8 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Lemmleinite-K | 3,969 /kg | 1.07E-10 /g | 185.4 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lemoynite | 991 /kg | 2.68E-11 /g | 46.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lennilenapeite | 758 /kg | 2.05E-11 /g | 35.6 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Leonite | 6,460 /kg | 1.75E-10 /g | 311.9 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Lepersonnite-(Gd) | 114,588,488 /kg | 3.1E-6 /g | 4,701,330.3 | 1.546 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Lepidolite | 3,048 /kg | 8.24E-11 /g | 143.5 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lepkhenelmite-Zn | 497 /kg | 1.34E-11 /g | 22.9 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Lermontovite | 115,759,300 /kg | 3.13E-6 /g | 4,732,051.0 | 1.556 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Leucite | 5,427 /kg | 1.47E-10 /g | 255.7 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Leucophosphite | 3,006 /kg | 8.12E-11 /g | 141.0 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Levinsonite-(Y) | 266,709 /kg | 7.21E-9 /g | 12,824.9 | 0.004 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Levyne-Ca | 155 /kg | 4.19E-12 /g | 7.5 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Levyne-Na | 291 /kg | 7.86E-12 /g | 14.1 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Liandratite | 73,676,400 /kg | 1.99E-6 /g | 3,003,911.7 | 0.988 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Liebigite | 58,479,300 /kg | 1.58E-6 /g | 2,660,039.5 | 0.875 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Liottite | 1,276 /kg | 3.45E-11 /g | 60.2 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Lisitsynite | 5,860 /kg | 1.58E-10 /g | 276.1 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Lithosite | 7,214 /kg | 1.95E-10 /g | 340.2 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Litidionite | 2,975 /kg | 8.04E-11 /g | 138.8 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Londonite | 9,019 /kg | 2.44E-10 /g | 413.0 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Loparite-(Ce) | 570,080 /kg | 1.54E-8 /g | 24,962.7 | 0.008 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Lopezite | 8,054 /kg | 2.18E-10 /g | 370.2 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Loranskite-(Y) | 67,424 /kg | 1.82E-9 /g | 2,811.4 | 0.001 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lourenswalsite | 1,515 /kg | 4.09E-11 /g | 70.2 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Lovdarite | 1,597 /kg | 4.32E-11 /g | 76.1 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Loveringite | 56,000 /kg | 1.51E-9 /g | 2,529.0 | 0.001 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Lucasite-(Ce) | 942,816 /kg | 2.55E-8 /g | 40,721.4 | 0.013 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Lukechangite-(Ce) | 1,031,968 /kg | 2.79E-8 /g | 44,906.9 | 0.015 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Magbasite | 1,254 /kg | 3.39E-11 /g | 57.2 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Magnesioastrophyllite | 1,857 /kg | 5.02E-11 /g | 86.3 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Magnesioriebeckite | 39 /kg | 1.05E-12 /g | 1.8 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Magnesiosadanagaite | 121 /kg | 3.27E-12 /g | 5.7 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Magnesiozippeite | 112,787,900 /kg | 3.05E-6 /g | 4,648,210.1 | 1.528 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Manaksite | 3,042 /kg | 8.22E-11 /g | 142.1 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Manganiandrosite-(Ce) | 430,398 /kg | 1.16E-8 /g | 19,341.3 | 0.006 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Manganiandrosite-(La) | 420,672 /kg | 1.14E-8 /g | 18,892.1 | 0.006 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Manganokukisvumite | 2,740 /kg | 7.41E-11 /g | 128.2 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Manganolangbeinite | 4,972 /kg | 1.34E-10 /g | 230.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Manganoneptunite | 1,306 /kg | 3.53E-11 /g | 60.7 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Manganonordite-(Ce) | 396,032 /kg | 1.07E-8 /g | 17,802.5 | 0.006 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Manjiroite | 318 /kg | 8.59E-12 /g | 14.4 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Mantienneite | 1,327 /kg | 3.59E-11 /g | 64.7 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Maoniupingite-(Ce) | 790,186 /kg | 2.14E-8 /g | 34,874.5 | 0.011 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Marecottite | 106,039,600 /kg | 2.87E-6 /g | 4,451,456.8 | 1.463 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Margaritasite | 87,424,327 /kg | 2.36E-6 /g | 3,548,601.0 | 1.167 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Marinellite | 1,997 /kg | 5.4E-11 /g | 93.9 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Marthozite | 98,038,300 /kg | 2.65E-6 /g | 4,044,954.4 | 1.330 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Masutomilite | 2,945 /kg | 7.96E-11 /g | 137.4 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Masuyite | 110,818,900 /kg | 3.0E-6 /g | 4,372,738.8 | 1.438 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Mathiasite | 421 /kg | 1.14E-11 /g | 19.1 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Matveevite | 1,173 /kg | 3.17E-11 /g | 56.2 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Mazzite-Mg | 800 /kg | 2.16E-11 /g | 38.6 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Mazzite-Na | 6 /kg | 1.62E-13 /g | 0.3 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Mckelveyite-(Nd) | 212,157 /kg | 5.73E-9 /g | 9,803.3 | 0.003 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Mckelveyite-(Y) | 43,162 /kg | 1.17E-9 /g | 1,884.4 | 0.001 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Megacyclite | 945 /kg | 2.55E-11 /g | 46.3 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Megakalsilite | 7,490 /kg | 2.02E-10 /g | 351.7 | 0.000 /g |
| Weak - Low level of Radioactivity, may show on average radiation equipment. |
Melanocerite-(Ce) | 2,298,240 /kg | 6.21E-8 /g | 97,351.5 | 0.032 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Menezesite | 2,360,844 /kg | 6.38E-8 /g | 103,091.0 | 0.034 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Mercallite | 8,699 /kg | 2.35E-10 /g | 413.6 | 0.000 /g |
| Mild - Very low level of Radioactivity, no special precautions needed. |
Mereiterite | 5,948 /kg | 1.61E-10 /g | 284.4 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Merlinoite | 1,894 /kg | 5.12E-11 /g | 90.8 | 0.000 /g |
| Barely Detectable - Radioactivity detected only by very sensitive instruments. |
Merrihueite | 1,576 /kg | 4.26E-11 /g | 73.8 | 0.000 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Meta-ankoleite | 92,993,085 /kg | 2.51E-6 /g | 3,943,190.0 | 1.296 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Meta-autunite | 101,170,800 /kg | 2.73E-6 /g | 4,231,188.6 | 1.391 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metacalciouranoite | 124,548,200 /kg | 3.37E-6 /g | 4,940,359.0 | 1.624 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metahaiweeite | 82,429,500 /kg | 2.23E-6 /g | 3,530,097.9 | 1.161 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metaheinrichite | 77,507,000 /kg | 2.09E-6 /g | 3,235,477.9 | 1.064 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metakahlerite | 83,718,300 /kg | 2.26E-6 /g | 3,539,684.8 | 1.164 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metakirchheimerite | 83,449,800 /kg | 2.26E-6 /g | 3,524,940.6 | 1.159 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metalodevite | 80,120,400 /kg | 2.17E-6 /g | 3,414,185.7 | 1.122 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metanovacekite | 89,661,100 /kg | 2.42E-6 /g | 3,754,784.0 | 1.234 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metarauchite | 83,485,600 /kg | 2.26E-6 /g | 3,534,967.5 | 1.162 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metaschoepite | 136,093,700 /kg | 3.68E-6 /g | 5,422,238.5 | 1.783 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metastudtite | 126,033,900 /kg | 3.41E-6 /g | 5,112,194.8 | 1.681 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metatorbernite | 90,878,300 /kg | 2.46E-6 /g | 3,865,875.6 | 1.271 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metatyuyamunite | 98,611,100 /kg | 2.67E-6 /g | 4,084,983.9 | 1.343 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Metauranocircite | 85,776,800 /kg | 2.32E-6 /g | 3,584,531.2 | 1.178 /g |
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