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Calculated Radioactivity
See Help on Radioactivity for background on the calculation.
| Estimated Radioactive Strength (ERS) |
Remarks |
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barely detectable - Radioactivity detected only by very sensitive instruments. |
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mild - Very low level of Radioactivity, no special precautions needed. |
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weak - Low level of Radioactivity, may show on average radiation equipment. |
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strong - Noticeable Radioactivity, limit exposure and handling. |
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very strong - Very Radioactive, limit exposure, handling and use secure storage. |
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dangerous - Potentially lethal. Store only small amounts in lead container. |
| * | Thorium estimated from Rare Earth Element content. |
Click Here For Mineral species sorted by Radioactive Strength.
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| ERS Icon |
Mineral Name | Calculated Activity Becquerel/kilogram |
Calculated Activity Curie/gram |
Estimate Activity GR(api) |
Estimate Activity mRem/hr per gram |
| Filatovite | 3,203 /kg | 8.66E-11 /g | 145.8 | 0.000 /g | |
| Florencite-(Ce) | 611,744 /kg | 1.65E-8 /g | 27,811.0 | 0.009 /g | |
| Florencite-(La) | 608,608 /kg | 1.64E-8 /g | 27,635.4 | 0.009 /g | |
| Florencite-(Nd) | 621,152 /kg | 1.68E-8 /g | 28,244.1 | 0.009 /g | |
| Florkeite | 2,557 /kg | 6.91E-11 /g | 122.7 | 0.000 /g | |
| Fluocerite-(Ce) | 1,591,744 /kg | 4.3E-8 /g | 65,328.9 | 0.021 /g | |
| Fluocerite-(La) | 1,588,384 /kg | 4.29E-8 /g | 64,889.0 | 0.021 /g | |
| Fluorannite | 2,248 /kg | 6.08E-11 /g | 104.2 | 0.000 /g | |
| Fluorarrojadite-(BaFe) | 167 /kg | 4.51E-12 /g | 7.7 | 0.000 /g | |
| Fluorarrojadite-(KNa) | 582 /kg | 1.57E-11 /g | 26.8 | 0.000 /g | |
| Fluorbritholite-(Ce) | 672,737 /kg | 1.82E-8 /g | 29,089.0 | 0.010 /g | |
| Fluorcalciobritholite | 583,200 /kg | 1.58E-8 /g | 25,643.3 | 0.008 /g | |
| Fluorcanasite | 2,736 /kg | 7.39E-11 /g | 129.3 | 0.000 /g | |
| Fluorcaphite | 467,264 /kg | 1.26E-8 /g | 20,721.9 | 0.007 /g | |
| Fluoro-edenite | 282 /kg | 7.62E-12 /g | 13.3 | 0.000 /g | |
| Fluoro-magnesio-arfvedsonite | 427 /kg | 1.15E-11 /g | 20.1 | 0.000 /g | |
| Fluoro-magnesiohastingsite | 300 /kg | 8.11E-12 /g | 14.1 | 0.000 /g | |
| Fluoro-potassichastingsite | 1,248 /kg | 3.37E-11 /g | 58.3 | 0.000 /g | |
| Fluoro-sodic-pedrizite | 15 /kg | 4.05E-13 /g | 0.7 | 0.000 /g | |
| Fluoronyboite | 82 /kg | 2.22E-12 /g | 3.9 | 0.000 /g | |
| Fluoropargasite | 227 /kg | 6.14E-12 /g | 10.7 | 0.000 /g | |
| Fluorophlogopite | 2,079 /kg | 5.62E-11 /g | 97.7 | 0.000 /g | |
| Fontanite | 115,114,900 /kg | 3.11E-6 /g | 4,737,674.3 | 1.558 /g | |
| Fourmarierite | 115,508,700 /kg | 3.12E-6 /g | 4,576,533.6 | 1.505 /g | |
| Francevillite | 87,047,700 /kg | 2.35E-6 /g | 3,542,886.6 | 1.165 /g | |
| Francoanellite | 1,430 /kg | 3.86E-11 /g | 68.9 | 0.000 /g | |
| Francoisite-(Ce) | 100,660,900 /kg | 2.72E-6 /g | 4,139,951.3 | 1.361 /g | |
| Francoisite-(Nd) | 109,716,590 /kg | 2.97E-6 /g | 4,509,957.0 | 1.483 /g | |
| Frankamenite | 2,645 /kg | 7.15E-11 /g | 125.1 | 0.000 /g | |
| Franklinphilite | 373 /kg | 1.01E-11 /g | 17.4 | 0.000 /g | |
| Franzinite | 1,836 /kg | 4.96E-11 /g | 86.5 | 0.000 /g | |
| Friedrichbeckeite | 1,048 /kg | 2.83E-11 /g | 49.5 | 0.000 /g | |
| Fritzscheite | 85,293,500 /kg | 2.31E-6 /g | 3,646,138.2 | 1.199 /g | |
| Fuenzalidaite | 1,976 /kg | 5.34E-11 /g | 88.5 | 0.000 /g | |
| Furongite | 54,129,600 /kg | 1.46E-6 /g | 2,442,312.5 | 0.803 /g | |
| Gadolinite-(Ce) | 1,020,414 /kg | 2.76E-8 /g | 44,122.9 | 0.015 /g | |
| Gainesite | 554 /kg | 1.5E-11 /g | 25.3 | 0.000 /g | |
| Galgenbergite-(Ce) | 1,085,280 /kg | 2.93E-8 /g | 47,505.9 | 0.016 /g | |
| Ganophyllite | 1,173 /kg | 3.17E-11 /g | 55.4 | 0.000 /g | |
| Ganterite | 754 /kg | 2.04E-11 /g | 34.8 | 0.000 /g | |
| Gasparite-(Ce) | 1,124,704 /kg | 3.04E-8 /g | 47,211.9 | 0.016 /g | |
| Gatelite-(Ce) | 861,490 /kg | 2.33E-8 /g | 38,145.6 | 0.013 /g | |
| Gengenbachite | 1,327 /kg | 3.59E-11 /g | 63.3 | 0.000 /g | |
| Georgbarsanovite | 61,906 /kg | 1.67E-9 /g | 2,853.4 | 0.001 /g | |
| Georgechaoite | 2,836 /kg | 7.66E-11 /g | 131.9 | 0.000 /g | |
| Gerenite-(Y) | 278,307 /kg | 7.52E-9 /g | 12,668.4 | 0.004 /g | |
| Giuseppettite | 2,185 /kg | 5.91E-11 /g | 102.7 | 0.000 /g | |
| Gjerdingenite-Ca | 903 /kg | 2.44E-11 /g | 41.9 | 0.000 /g | |
| Gjerdingenite-Fe | 1,906 /kg | 5.15E-11 /g | 88.5 | 0.000 /g | |
| Gjerdingenite-Mn | 1,457 /kg | 3.94E-11 /g | 67.6 | 0.000 /g | |
| Gjerdingenite-Na | 985 /kg | 2.66E-11 /g | 45.9 | 0.000 /g | |
| Glauconite | 1,663 /kg | 4.49E-11 /g | 78.2 | 0.000 /g | |
| Gmelinite-Ca | 61 /kg | 1.65E-12 /g | 2.9 | 0.000 /g | |
| Gmelinite-K | 1,894 /kg | 5.12E-11 /g | 91.4 | 0.000 /g | |
| Gmelinite-Na | 94 /kg | 2.54E-12 /g | 4.5 | 0.000 /g | |
| Gobbinsite | 1,854 /kg | 5.01E-11 /g | 89.0 | 0.000 /g | |
| Goldichite | 3,297 /kg | 8.91E-11 /g | 158.2 | 0.000 /g | |
| Goldquarryite | 45 /kg | 1.22E-12 /g | 2.1 | 0.000 /g | |
| Golyshevite | 8,409 /kg | 2.27E-10 /g | 392.0 | 0.000 /g | |
| Gorgeyite | 2,712 /kg | 7.33E-11 /g | 129.0 | 0.000 /g | |
| Gramaccioliite-(Y) | 485,784 /kg | 1.31E-8 /g | 21,638.5 | 0.007 /g | |
| Graulichite-(Ce) | 396,704 /kg | 1.07E-8 /g | 17,583.1 | 0.006 /g | |
| Grayite | 19,586,560 /kg | 5.29E-7 /g | 805,831.3 | 0.265 /g | |
| Gregoryite | 6,175 /kg | 1.67E-10 /g | 289.2 | 0.000 /g | |
| Grimselite | 70,030,642 /kg | 1.89E-6 /g | 3,024,891.1 | 0.994 /g | |
| Guilleminite | 99,273,400 /kg | 2.68E-6 /g | 3,978,368.7 | 1.308 /g | |
| Gutkovaite-Mn | 1,570 /kg | 4.24E-11 /g | 72.9 | 0.000 /g | |
| Gwihabaite | 3,469 /kg | 9.38E-11 /g | 170.4 | 0.000 /g | |
| Gysinite-(Nd) | 633,472 /kg | 1.71E-8 /g | 26,291.2 | 0.009 /g | |
| Haigerachite | 1,124 /kg | 3.04E-11 /g | 53.6 | 0.000 /g | |
| Haineaultite | 539 /kg | 1.46E-11 /g | 25.5 | 0.000 /g | |
| Hainite | 44,286 /kg | 1.2E-9 /g | 2,056.0 | 0.001 /g | |
| Haiweeite | 85,150,300 /kg | 2.3E-6 /g | 3,645,669.6 | 1.199 /g | |
| Haleniusite-(La) | 1,791,328 /kg | 4.84E-8 /g | 72,860.6 | 0.024 /g | |
| Hallimondite | 44,266,700 /kg | 1.2E-6 /g | 1,760,876.0 | 0.579 /g | |
| Hanksite | 754 /kg | 2.04E-11 /g | 35.3 | 0.000 /g | |
| Harmotome | 167 /kg | 4.51E-12 /g | 7.8 | 0.000 /g | |
| Haynesite | 107,579,000 /kg | 2.91E-6 /g | 4,379,416.1 | 1.440 /g | |
| Hazenite | 2,142 /kg | 5.79E-11 /g | 106.2 | 0.000 /g | |
| Heinrichite | 73,873,300 /kg | 2.0E-6 /g | 3,122,439.9 | 1.027 /g | |
| Heklaite | 5,802 /kg | 1.57E-10 /g | 265.2 | 0.000 /g | |
| Hellandite-(Ce) | 853,807 /kg | 2.31E-8 /g | 37,942.2 | 0.012 /g | |
| Hellandite-(Y) | 466,596 /kg | 1.26E-8 /g | 21,063.9 | 0.007 /g | |
| Hendricksite | 2,160 /kg | 5.84E-11 /g | 100.2 | 0.000 /g | |
| Herschelite | 906 /kg | 2.45E-11 /g | 43.7 | 0.000 /g | |
| Heulandite-Ba | 145 /kg | 3.92E-12 /g | 6.8 | 0.000 /g | |
| Heulandite-Ca | 179 /kg | 4.84E-12 /g | 8.6 | 0.000 /g | |
| Heulandite-K | 979 /kg | 2.65E-11 /g | 47.0 | 0.000 /g | |
| Heulandite-Na | 236 /kg | 6.38E-12 /g | 11.3 | 0.000 /g | |
| Heulandite-Sr | 88 /kg | 2.38E-12 /g | 4.2 | 0.000 /g | |
| Hibonite | 87,808 /kg | 2.37E-9 /g | 4,062.6 | 0.001 /g | |
| Hieratite | 10,753 /kg | 2.91E-10 /g | 492.7 | 0.000 /g | |
| Hingganite-(Ce) | 916,342 /kg | 2.48E-8 /g | 40,327.7 | 0.013 /g | |
| Hingganite-(Y) | 350,701 /kg | 9.48E-9 /g | 15,639.8 | 0.005 /g | |
| Hingganite-(Yb) | 854,112 /kg | 2.31E-8 /g | 37,190.2 | 0.012 /g | |
| Holfertite | 114,166,273 /kg | 3.09E-6 /g | 4,664,314.1 | 1.533 /g | |
| Huanghoite-(Ce) | 753,536 /kg | 2.04E-8 /g | 31,528.5 | 0.010 /g | |
| Hugelite | 78,688,400 /kg | 2.13E-6 /g | 3,155,261.2 | 1.037 /g | |
| Humberstonite | 3,130 /kg | 8.46E-11 /g | 149.1 | 0.000 /g | |
| Hummerite | 1,724 /kg | 4.66E-11 /g | 80.9 | 0.000 /g |
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