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UM1984-39-SiO:U
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Formula:
U3SiO8
(U,Ca)3SiO8 better reflects the chemistry
Chemically similar to 'UM1983-25-SiO:U', 'UM1983-26-SiO:U', 'UM1983-27-SiO:U', 'UM1983-28-SiO:U', and uranosilite; compare also 'UM1957-01-SiO:U'.
Encountered mainly within U silicate spherulites of the Balkan metallogenic zone; occurs intergrown with pitchblende (uraninite), coffinite, and two other unnamed uranium silicates (Am. Mineral. 68, 1040); probably results from alteration of uraninite. 'UM1985-27-SiO:FeU' and other U-Fe silicates are reported from the same zone.
Encountered mainly within U silicate spherulites of the Balkan metallogenic zone; occurs intergrown with pitchblende (uraninite), coffinite, and two other unnamed uranium silicates (Am. Mineral. 68, 1040); probably results from alteration of uraninite. 'UM1985-27-SiO:FeU' and other U-Fe silicates are reported from the same zone.
Unique Identifiers
Mindat ID:
47813
Long-form identifier:
mindat:1:1:47813:7
Similar Names
| UM1957-01-SiO:U | U-Si-O | |
| UM1981-27-SiO:HU | (UO2)-Si-O-H | |
| UM1983-25-SiO:U | U4SiO10 | |
| UM1983-26-SiO:U | U2SiO6 | |
| UM1983-27-SiO:U | USi2O6 | |
| UM1983-28-SiO:U | USi4O10 | |
| UM1999-32-SiO | A synonym of Seifertite | |
| UM2000-61-SiO | Valid as an unnamed mineral | SiO2 |
| UM2005-//-SiO:H | Invalid as an unnamed mineral | SiO2.nH2O (?) |
| UM2006-22-SiO:V | Valid as an unnamed mineral | VSiO3(OH) (?) |
Physical Properties of UM1984-39-SiO:U
Hardness:
VHN100=620 - 650 - Vickers
Chemistry of UM1984-39-SiO:U
Mindat Formula:
U3SiO8
(U,Ca)3SiO8 better reflects the chemistry
(U,Ca)3SiO8 better reflects the chemistry
Elements listed:
Radioactivity
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for UM1984-39-SiO:U
mindat.org URL:
https://www.mindat.org/min-47813.html
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References for UM1984-39-SiO:U
Reference List:
Localities for UM1984-39-SiO:U
Showing 3 localities.
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
Austria | |
| Simova (1984) |
Bulgaria | |
Slovenia | |
| Simova (1984) |
