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Calculated Radioactivity
See Help on Radioactivity for background on the calculation. Legend
Click Here For Mineral species sorted by Mineral Name.
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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 |
 Strong - Noticeable Radioactivity, limit exposure and handling. |
Iraqite-(La) | 4,449,437 /kg | 1.2E-7 /g | 202,225.4 | 0.066 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Davidite-(Ce) | 5,841,404 /kg | 1.58E-7 /g | 259,721.7 | 0.085 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Davidite-(La) | 5,860,628 /kg | 1.58E-7 /g | 260,778.5 | 0.086 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Nioboaeschynite-(Y) | 6,110,627 /kg | 1.65E-7 /g | 262,272.6 | 0.086 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Monazite-(Sm) | 7,064,299 /kg | 1.91E-7 /g | 296,972.8 | 0.098 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Dessauite | 6,873,600 /kg | 1.86E-7 /g | 305,935.2 | 0.101 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Ciprianiite | 7,575,118 /kg | 2.05E-7 /g | 340,372.1 | 0.112 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Britholite-(Ce) | 8,176,000 /kg | 2.21E-7 /g | 354,420.4 | 0.117 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Umbozerite | 8,234,240 /kg | 2.23E-7 /g | 360,840.3 | 0.119 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Plumbopyrochlore | 8,788,900 /kg | 2.38E-7 /g | 365,356.5 | 0.120 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Eylettersite | 8,641,920 /kg | 2.34E-7 /g | 392,605.6 | 0.129 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Thornasite | 9,139,200 /kg | 2.47E-7 /g | 417,843.8 | 0.137 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Plumbomicrolite | 10,704,200 /kg | 2.89E-7 /g | 425,202.2 | 0.140 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Turkestanite | 9,453,606 /kg | 2.56E-7 /g | 430,666.3 | 0.142 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Tuliokite | 10,653,440 /kg | 2.88E-7 /g | 469,911.3 | 0.154 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Steacyite | 11,330,781 /kg | 3.06E-7 /g | 506,796.0 | 0.167 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Yttrobetafite-(Y) | 12,112,000 /kg | 3.27E-7 /g | 518,951.2 | 0.171 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Yttrialite-(Y) | 12,445,440 /kg | 3.36E-7 /g | 532,150.4 | 0.175 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Cerianite-(Ce) | 13,319,040 /kg | 3.6E-7 /g | 533,100.5 | 0.175 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Ekanite | 12,127,360 /kg | 3.28E-7 /g | 541,761.0 | 0.178 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Cheralite-(Ce) | 13,001,201 /kg | 3.51E-7 /g | 548,387.5 | 0.180 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Yttrotantalite-(Y) | 13,478,700 /kg | 3.64E-7 /g | 557,174.0 | 0.183 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Kobeite-(Y) | 13,335,500 /kg | 3.6E-7 /g | 584,022.4 | 0.192 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Calciobetafite | 13,428,527 /kg | 3.63E-7 /g | 588,039.4 | 0.193 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Thorosteenstrupine | 13,121,920 /kg | 3.55E-7 /g | 591,367.6 | 0.194 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Polycrase-(Y) | 14,206,760 /kg | 3.84E-7 /g | 603,364.4 | 0.198 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Brockite | 14,129,920 /kg | 3.82E-7 /g | 620,574.3 | 0.204 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Yttrocrasite-(Y) | 17,769,640 /kg | 4.8E-7 /g | 783,773.8 | 0.258 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Yttropyrochlore-(Y) | 18,687,600 /kg | 5.05E-7 /g | 796,508.7 | 0.262 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Grayite | 19,586,560 /kg | 5.29E-7 /g | 805,831.3 | 0.265 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Plumbobetafite | 20,070,284 /kg | 5.42E-7 /g | 840,619.2 | 0.276 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Thorbastnasite | 20,415,360 /kg | 5.52E-7 /g | 868,260.2 | 0.285 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Samarskite-(Yb) | 21,342,354 /kg | 5.77E-7 /g | 879,530.8 | 0.289 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Brabantite | 22,494,080 /kg | 6.08E-7 /g | 945,635.4 | 0.311 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Cleusonite | 22,303,400 /kg | 6.03E-7 /g | 973,041.3 | 0.320 /g |
| Strong - Noticeable Radioactivity, limit exposure and handling. |
Bismutopyrochlore | 22,697,200 /kg | 6.13E-7 /g | 977,957.9 | 0.322 /g |
 Very Radioactive, limit exposure, handling and use secure storage. |
Phosphowalpurgite | 27,852,400 /kg | 7.53E-7 /g | 1,115,548.4 | 0.367 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Orthowalpurgite | 28,711,600 /kg | 7.76E-7 /g | 1,145,986.9 | 0.377 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Walpurgite | 28,711,600 /kg | 7.76E-7 /g | 1,145,986.9 | 0.377 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Znucalite | 26,259,300 /kg | 7.1E-7 /g | 1,184,187.8 | 0.389 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Samarskite-(Y) | 28,731,018 /kg | 7.77E-7 /g | 1,201,227.3 | 0.395 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Yttrocolumbite-(Y) | 28,711,600 /kg | 7.76E-7 /g | 1,203,604.4 | 0.396 /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 |
| Very Radioactive, limit exposure, handling and use secure storage. |
Thorite | 32,067,840 /kg | 8.67E-7 /g | 1,281,208.9 | 0.421 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Thorogummite | 32,309,760 /kg | 8.73E-7 /g | 1,290,866.3 | 0.424 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Betafite | 30,788,000 /kg | 8.32E-7 /g | 1,309,462.1 | 0.431 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Uranpyrochlore | 31,950,004 /kg | 8.64E-7 /g | 1,325,150.2 | 0.436 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Arapovite | 30,265,924 /kg | 8.18E-7 /g | 1,355,079.4 | 0.446 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Thorianite | 39,370,240 /kg | 1.06E-6 /g | 1,505,105.9 | 0.495 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Ashanite | 37,145,001 /kg | 1.0E-6 /g | 1,547,018.5 | 0.509 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Demesmaekerite | 39,218,900 /kg | 1.06E-6 /g | 1,627,791.1 | 0.535 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Mourite | 39,451,600 /kg | 1.07E-6 /g | 1,697,651.9 | 0.558 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Hallimondite | 44,266,700 /kg | 1.2E-6 /g | 1,760,876.0 | 0.579 /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 |
| Very Radioactive, limit exposure, handling and use secure storage. |
Parsonsite | 46,790,600 /kg | 1.26E-6 /g | 1,888,738.9 | 0.621 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Deloryite | 45,018,500 /kg | 1.22E-6 /g | 1,929,671.0 | 0.634 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Shabaite-(Nd) | 44,526,235 /kg | 1.2E-6 /g | 1,930,609.5 | 0.635 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Astrocyanite-(Ce) | 45,173,555 /kg | 1.22E-6 /g | 1,953,625.6 | 0.642 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Widenmannite | 49,278,700 /kg | 1.33E-6 /g | 1,964,693.4 | 0.646 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Uranmicrolite | 48,974,400 /kg | 1.32E-6 /g | 1,971,391.3 | 0.648 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Moctezumite | 51,426,700 /kg | 1.39E-6 /g | 2,021,762.8 | 0.665 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Derriksite | 48,401,600 /kg | 1.31E-6 /g | 2,062,663.8 | 0.678 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Rauvite | 46,665,300 /kg | 1.26E-6 /g | 2,068,510.6 | 0.680 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Moreauite | 47,112,800 /kg | 1.27E-6 /g | 2,163,152.3 | 0.711 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Schrockingerite | 47,954,100 /kg | 1.3E-6 /g | 2,188,412.8 | 0.719 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Cliffordite | 55,704,800 /kg | 1.51E-6 /g | 2,219,439.7 | 0.730 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Thorutite | 54,239,920 /kg | 1.47E-6 /g | 2,270,225.2 | 0.746 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Bayleyite | 51,766,800 /kg | 1.4E-6 /g | 2,407,411.5 | 0.791 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Furongite | 54,129,600 /kg | 1.46E-6 /g | 2,442,312.5 | 0.803 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Tristramite | 55,006,700 /kg | 1.49E-6 /g | 2,467,244.9 | 0.811 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Coconinoite | 55,328,900 /kg | 1.5E-6 /g | 2,490,136.8 | 0.819 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Voglite | 55,919,600 /kg | 1.51E-6 /g | 2,494,854.6 | 0.820 /g |
| Very Radioactive, limit exposure, handling and use secure storage. *Missing Thorium content - estimated from Rare Earth Element concentration. |
Brannerite | 60,213,336 /kg | 1.63E-6 /g | 2,546,483.5 | 0.837 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Rabbittite | 57,351,600 /kg | 1.55E-6 /g | 2,602,255.6 | 0.856 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Uranopolycrase | 63,986,340 /kg | 1.73E-6 /g | 2,646,240.5 | 0.870 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Uranosilite | 60,287,200 /kg | 1.63E-6 /g | 2,648,672.5 | 0.871 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Swartzite | 58,300,300 /kg | 1.58E-6 /g | 2,659,049.1 | 0.874 /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 |
| Very Radioactive, limit exposure, handling and use secure storage. |
Petscheckite | 65,370,800 /kg | 1.77E-6 /g | 2,674,320.4 | 0.879 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Albrechtschraufite | 59,624,900 /kg | 1.61E-6 /g | 2,684,997.2 | 0.883 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Uvanite | 61,397,000 /kg | 1.66E-6 /g | 2,695,497.3 | 0.886 /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 |
| 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. |
Romanite | 70,006,900 /kg | 1.89E-6 /g | 2,880,457.5 | 0.947 /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 |
| Very Radioactive, limit exposure, handling and use secure storage. |
Moluranite | 68,270,600 /kg | 1.85E-6 /g | 2,911,608.2 | 0.957 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Ulrichite | 67,017,600 /kg | 1.81E-6 /g | 2,920,461.6 | 0.960 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Andersonite | 66,122,600 /kg | 1.79E-6 /g | 2,931,533.6 | 0.964 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Seelite-1 | 68,628,600 /kg | 1.85E-6 /g | 2,983,992.7 | 0.981 /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. |
Grimselite | 70,030,642 /kg | 1.89E-6 /g | 3,024,891.1 | 0.994 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Asselbornite | 76,075,000 /kg | 2.06E-6 /g | 3,027,228.9 | 0.995 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Sreinite | 76,934,200 /kg | 2.08E-6 /g | 3,061,826.7 | 1.007 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Uranotungstite | 72,978,300 /kg | 1.97E-6 /g | 3,085,405.5 | 1.014 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Heinrichite | 73,873,300 /kg | 2.0E-6 /g | 3,122,439.9 | 1.027 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Sedovite | 76,361,400 /kg | 2.06E-6 /g | 3,128,190.8 | 1.028 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Uranosphaerite | 80,693,200 /kg | 2.18E-6 /g | 3,143,455.8 | 1.033 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Hugelite | 78,688,400 /kg | 2.13E-6 /g | 3,155,261.2 | 1.037 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Arsenuranospathite | 71,474,700 /kg | 1.93E-6 /g | 3,156,713.9 | 1.038 /g |
| Very Radioactive, limit exposure, handling and use secure storage. |
Pseudo-autunite | 73,049,900 /kg | 1.97E-6 /g | 3,208,667.1 | 1.055 /g |
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