Kasolite
About Kasolite
Crystal structure details:
- uranyl silicate layers of the uranophane sheet anion-topology
- Pb atoms and water molecules are in the interlayer space; water coordinates interlayer Pb
- hydrogen bonding is strong, with pair distribution of water molecules
Unique Identifiers
Similar Names
IMA Classification of Kasolite
Classification of Kasolite
9 : SILICATES (Germanates)
A : Nesosilicates
K : Uranyl neso- and polysilicates
53 : NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
3 : Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
14 : Silicates not Containing Aluminum
16 : Silicates of U
Mineral Symbols
| Symbol | Source | Reference for Standard |
|---|---|---|
| Kso | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Kasolite
Perfect on {001}
Indistinct on {100} {010}
Optical Data of Kasolite
Based on recorded range of RI values above.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Z= colorless to slightly grayish
Chemistry of Kasolite
Crystallography of Kasolite
β = 104.33°
Crystal Structure
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0012338 | Kasolite | Rosenzweig A, Ryan R R (1977) Kasolite, Pb(UO2)(SiO4)*H2O Crystal Structure Communications 6 617-621 | 1977 | 0 | 293 | ||
| 0015549 | Kasolite | Mokeeva V I (1965) The crystal structure of kasolite Soviet Physics Crystallography 9 621-622 | 1965 | 0 | 293 | ||
| 0011895 | Kasolite | Huynen A M, Piret-Meunier J, Van Meerssche M (1963) Structure de la kasolite Academie Royale de Belgique, Classe des Sciences: Bulletin 49 192-201 | 1963 | 0 | 293 |
X-Ray Powder Diffraction
| d-spacing | Intensity |
|---|---|
| 3.26 Å | (100) |
| 2.93 Å | (90) |
| 4.19 Å | (80b) |
| 3.53 Å | (70) |
| 6.61 Å | (60) |
| 3.07 Å | (50) |
| 1.962 Å | (50) |
Geological Environment
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 27 : Radioactive decay; auto-oxidation | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47f : [Uranyl (U⁶⁺) minerals] |
Type Occurrence of Kasolite
Synonyms of Kasolite
Other Language Names for Kasolite
Common Associates
| 130 photos of Kasolite associated with Malachite | Cu2(CO3)(OH)2 |
| 129 photos of Kasolite associated with Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| 42 photos of Kasolite associated with Wulfenite | Pb(MoO4) |
| 40 photos of Kasolite associated with Cuprosklodowskite | Cu(UO2)2(SiO3OH)2 · 6H2O |
| 38 photos of Kasolite associated with Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| 35 photos of Kasolite associated with Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| 30 photos of Kasolite associated with Curite | Pb3(H2O)2[(UO2)4O4(OH)3]2 |
| 27 photos of Kasolite associated with Quartz | SiO2 |
| 21 photos of Kasolite associated with Uraninite | UO2 |
| 21 photos of Kasolite associated with Vandenbrandeite | Cu(UO2)(OH)4 |
Related Minerals - Strunz-mindat Grouping
| 9.AK. | Orlite | Pb3(UO2)3(Si2O7)2 · 6H2O |
| 9.AK.05 | Soddyite | (UO2)2SiO4 · 2H2O |
| 9.AK.10 | Sklodowskite | Mg(UO2)2(SiO3OH)2 · 6H2O |
| 9.AK.10 | Cuprosklodowskite | Cu(UO2)2(SiO3OH)2 · 6H2O |
| 9.AK.10 | Oursinite | Co(UO2)2(SiO3OH)2 · 6H2O |
| 9.AK.15 | Parauranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| 9.AK.15 | Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| 9.AK.15 | Natroboltwoodite | Na(UO2)(SiO3OH) · H2O |
| 9.AK.15 | Boltwoodite | (K,Na)(UO2)(SiO3OH) · 1.5H2O |
| 9.AK.20 | Swamboite-(Nd) | Nd0.333[(UO2)(SiO3OH)](H2O)~2.5 |
| 9.AK.25 | Haiweeite | Ca(UO2)2[Si5O12(OH)2] · 6H2O |
| 9.AK.25 | Metahaiweeite | Ca(UO2)2Si6O15 · nH2O |
| 9.AK.30 | Weeksite | K2(UO2)2(Si5O13) · 4H2O |
| 9.AK.30 | Coutinhoite | ThxBa(1-2x)(UO2)2Si5O13 · (H2O)1+y (0 < x < 0.5 and 0 < y < (2+x)) |
| 9.AK.30 | Barronite | (◻0.5Ba0.5)(UO2)2Si5O12(OH) · 2H2O |
| 9.AK.35 | Magnioursilite | Mg4(UO2)4(Si2O5)5(OH)6 · 20H2O |
| 9.AK.35 | Calcioursilite | Ca4(UO2)4(Si2O5)5(OH)6 · 15H2O |
| 9.AK.40 | Uranosilite | UO3 · 7SiO2 |
Radioactivity
| Element | % Content | Activity (Bq/kg) | Radiation Type |
|---|---|---|---|
| Uranium (U) | 40.5276% | 10,131,900 | α, β, γ |
| Thorium (Th) | 0.0000% | 0 | α, β, γ |
| Potassium (K) | 0.0000% | 0 | β, γ |
For comparison:
- Banana: ~15 Bq per fruit
- Granite: 1,000–3,000 Bq/kg
- EU exemption limit: 10,000 Bq/kg
Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.
Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!
Activity: –
| Distance | Dose rate | Risk |
|---|---|---|
| 1 cm | ||
| 10 cm | ||
| 1 m |
The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μshield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).
D = ((AU × ΓU) + (ATh × ΓTh) + (AK × ΓK)) / r2 × μshield
Other Information
Internet Links for Kasolite
Please feel free to link to this page.
References for Kasolite
Localities for Kasolite
Showing 248 localities.
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Argentina | |
| Zappettini et al. (2014) |
| Raúl Jorge Tauber Larry +1 other reference | |
| Raúl Jorge Tauber Larry´s collection |
Australia | |
| Isobe et al. (1992) +1 other reference |
| Henry et al. (1999) |
| Econ Geol (1987) +1 other reference | |
| Henry et al. (2005) |
| American Mineralogist: 46: 12-25. |
| Plimer et al. (2002) |
| Brugger et al. (2003) +3 other references |
| Ferguson (1999) |
| Ferguson (1999) |
Austria | |
| Strasser (1989) |
| Strasser (1989) |
| - (n.d.) +1 other reference | |
| Meixner et al. (1979) +1 other reference |
| - (n.d.) |
| Strasser (1989) |
Brazil | |
| Pires et al. (2014) |
Bulgaria | |
| Kalaidjiev et al. (2009) |
Canada | |
| Peatfield (n.d.) +1 other reference |
| Peatfield (n.d.) |
| Cowan (1962) |
| G.S.C. Bulletin 330. +1 other reference |
| Traill (1983) |
| Pouliot et al. (1964) | |
| Sabina (1986) | |
| Reiner Mielke 2013 | |
| Ontario Geological Survey Miscellaneous ... +2 other references |
| Sabina (1991) |
| Satterly (1956) |
| SASSANO et al. (1987) |
| Jeremy Zolan |
| Hogarth (1951) |
| Sabina (1972) |
Chad | |
| Olivier et al. (2021) |
Chile | |
| SEM-EDS by Joy Desor and Gerhard Möhn |
China | |
| Gu et al. (2025) |
| Dahlkamp (2009) |
Czech Republic | |
| Plášil et al. (2010) |
| [Bull.N.M.Praha 2002 | |
| Journal of Geosciences 54:15-56 +2 other references |
| Hloušek et al. (2002) |
| Desor (04/2022) |
| Sejkora et al. (1994) +1 other reference |
| Pauliš et al. (2004) |
| Sejkora (1994) +1 other reference |
| Pauliš P. et al. (Kutna Hora, issue 1) |
| Škácha et al. (2024) |
| Uranové minerály České republiky a ... |
| Škácha et al. (2017) | |
| Sejkora et al. (2007) +1 other reference |
DR Congo | |
| KMMA |
| Comptes Rendus de l'Académie des sciences de Paris (1922) +2 other references |
| KMMA +1 other reference | |
| KMMA |
| Am Min 36:394-410 +1 other reference |
| Deliens (1992) |
| Deliens +1 other reference | |
| Daltry (1992) +2 other references |
Egypt | |
| El-Naby (2009) |
| Abd El-Naby (2008) +1 other reference | |
| Nagar et al. (2020) | |
| Abd El Rahman et al. (2022) | |
| Raslan +3 other references | |
| Abed et al. (2022) | |
| B.H. Ali et al. (2008) | |
| Ismail (2017) +1 other reference | |
| Shalan (2021) |
| Yehia H. Dawood (2011) +2 other references | |
| Mouhareb (2017) | |
| Hussein et al. (1988) | |
| Raslan et al. (2010) | |
| Abdel Gawad et al. (2022) |
| Ibrahim (2014) +2 other references |
Europe | |
| |
Finland | |
| Vuorelainen |
France | |
| Kolitsch et al. (2009) |
| - (1998) |
| - (1998) | |
| J.-J. Périchaud: "Où trouver les minéraux d'Auvergne" et al. (Clermont-Ferrand) | |
| Agrinier et al. (1967) |
| - (1998) |
| J. Chervet | |
| Queneau (n.d.) | |
| Chollet Pascal Collection |
| De Ascençao Guedes (2000) |
| De Ascençao Guedes et al. (2000) |
| OLLIC Pascal Collection |
| OLLIC Pascal Collection | |
| OLLIC Pascal Collection +1 other reference | |
| OLLIC Pascal Collection +1 other reference |
| Pascal Chollet Collection - SEM-EDS ... |
| - (1998) |
| - (1998) |
| - (1998) |
| - (1998) |
| - (1998) |
| Georges Favreau specimens |
| - (1998) |
Gabon | |
| Mineralogical Society of America - ... |
Germany | |
| Walenta (1992) +1 other reference |
| Wittern (2001) |
| Weiß (1990) |
| |
| |
| Walenta (1992) |
| Weiß (1990) |
| https://www.mineralienatlas.de/?l=5281 |
| Weiß (1990) |
| Weiß (1990) |
| P Mostmans collection | |
| Weiß (1990) |
| Dill et al. (2010) | |
| Aufschluss 69/ (7+8) +1 other reference |
| Noll (1984) |
| Wittern (2001) | |
| Weiß (1990) |
| Desor (05/2020) |
| Wittern (2001) |
| Gröbner et al. (2007) +1 other reference | |
Hungary | |
| Koch (1985) |
India | |
| Current Science |
| Saini +3 other references |
Italy | |
| |
| Roggiani A. G. (1974) |
| Caboni et al. (2019) |
| Orlandi (2011) |
| Ravagnani (1974) |
| Campostrini et al. (2006) |
| Venzo et al. (2017) |
| Campostrini et al. (2005) |
Japan | |
| Kato (1973) |
Mexico | |
| Andrew Haighton Collection |
| Museum of Natural History London ... |
Namibia | |
| Gebhard (1999) |
North Macedonia | |
| Radusinovic (1974) |
Norway | |
| Larsen (2025) |
| Åmli (1975) |
| Neumann (1985) | |
| Sverdrup (1959) |
| Neumann (1955) |
| Kristiansen (2007) |
| Husdal (2023) |
| Husdal (2008) |
| Sørlie (2003) |
| Kristiansen (2022) |
| Larsen (2025) |
| Sverdrup et al. (1967) |
Poland | |
| Siuda et al. (2008) |
Portugal | |
| Alves (n.d.) |
| Alves et al. (2017) |
Romania | |
| Szakáll:Minerals of Carpathians |
| Hîrtopanu P. et al. (2004) |
Russia | |
| Зубрев И.Н |
| Lyalina et al. (2014) |
| Pavel.M. Kartashov (n.d.) | |
| Voloshin A.V. et al. (1986) |
| |
| |
| Pavel.M. Kartashov (n.d.) |
Spain | |
| gr-mulhacen.foroactivo.com (2023) |
| Jose Francisco Castro collection +1 other reference |
| I. Ramos Márquez +3 other references |
| Castillo-Oliver et al. (2019) |
Sweden | |
| Wilke (1997) |
| Natural History Museum |
| |
| |
| Welin (1965) |
| |
| Löfvendahl (1981) |
| Sandström (2008) |
| |
| |
Switzerland | |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| Meisser (1999) | |
| Cuchet et al. (2024) |
| Meisser (2012) |
| Meisser (2012) |
| Meisser (2012) |
| |
| Stalder et al. (1998) | |
| Meisser (2012) |
Tajikistan | |
| Гецева et al. (1956) |
| Pekov (1998) |
Tanzania | |
| Frondel et al. (1956) +1 other reference |
UK | |
| Elton and Hooper |
| Elton et al. (1995) | |
| Nicholas J. ELTON Tregears. Little ... +4 other references |
| von Backstrom (1974) |
| O. von Knorring and R. Dearnley (1960) |
USA | |
| Galbraith (1959) |
| Anthony et al. (1995) |
| MRDS database Dep. ID file #10095028 |
| Granger (1962) |
| Galbraith (1959) +1 other reference |
| Arthur L. Flagg Collection No. 4931A/B |
| US Atomic Energy Commission Prelim. Reconnaisance Report A-R-2 (1953) +4 other references |
| US Atomic Energy Commission Prelim. Reconnaisance Report D-441 (1952) +5 other references |
| Robinson (1954) +2 other references |
| Anthony et al. (1995) | |
| Frondel (1958) +1 other reference |
| Species confirmed by Dr. Robert Housley. (Personal communication March 2019) |
| Murdoch (1966) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Sims (1963) +1 other reference |
| USGS Bull 1032A | |
| Sims (1963) |
| USGS Bull 1032A +2 other references | |
| Eckel et al. (1997) |
| Pavel M. Kartashov data |
| Eckel et al. (1997) |
| Eckel et al. (1997) | |
| Carnegie Museum of Natural History ... |
| Thompson et al. (1998) |
| Travis Olds collection |
| Castor et al. (2004) |
| Page et al. (1956) +2 other references |
| Longwell et al. (1965) |
| Castor et al. (2004) |
| Nevada Bureau of Mines and Geology ... +1 other reference |
| Castor et al. (2004) | |
| Castor et al. (2004) | |
| Frondel (1956) +1 other reference |
| King (n.d.) |
| Jerry Cone Collection | |
| Jensen (1978) |
| Seaman (1976) | |
| Finch et al. (1997) |
| Finch et al. (1997) | |
| American Mineralogist +1 other reference |
| Finch et al. (1997) |
| USGS: Geological Survey Circular 350 |
| USGS: Geological Survey Circular 350 |
| Lapham et al. (1965) |
| Smith and Hioff (1984) |
| Smith et al. (2000) |
| Rocks & Min.:10:147 & 60:112 |
| O'Neill (2014) |
| Hausel et al. (2001) |
Zimbabwe | |
| Gallagher (1967) |




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San Rafael Mine, Cardeña, Córdoba, Andalusia, Spain