Sedovite
About Sedovite
Unique Identifiers
Similar Names
| Zadovite | A valid IMA mineral species | BaCa6[(SiO4)(PO4)](PO4)2F |
IMA Classification of Sedovite
Classification of Sedovite
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
H : Uranium and uranyl molybdates and wolframates
A : With U4+
48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
4 : Miscellaneous
27 : Sulphites, Chromates, Molybdates and Tungstates
3 : Molybdates
Mineral Symbols
| Symbol | Source | Reference for Standard |
|---|---|---|
| Sdv | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Sedovite
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Sedovite
one cleavage parallel to elongation
Optical Data of Sedovite
Chemistry of Sedovite
Crystallography of Sedovite
X-Ray Powder Diffraction
| d-spacing | Intensity |
|---|---|
| 3.193 Å | (10) |
| 11.04 Å | (9) |
| 3.370 Å | (9) |
| 3.064 Å | (9) |
| 5.530 Å | (8) |
| 2.775 Å | (6) |
| 2.559 Å | (6) |
Geological Environment
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47f : [Uranyl (U⁶⁺) minerals] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Sedovite
Other Language Names for Sedovite
Related Minerals - Strunz-mindat Grouping
| 7.HA.10 | Cousinite | MgU2Mo2O11 · 6H2O |
| 7.HA.15 | Moluranite | H4U4+(UO2)3(MoO4)7 · 18H2O |
Radioactivity
| Element | % Content | Activity (Bq/kg) | Radiation Type |
|---|---|---|---|
| Uranium (U) | 42.6618% | 10,665,450 | 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 Sedovite
Please feel free to link to this page.
References for Sedovite
Localities for Sedovite
Showing 5 localities.
symbol to view information about a locality.
The 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.
Canada | |
| Chatterjee (1977) |
Egypt | |
| Bisher (2012) |
India | |
| Deepthi et al. (2015) |
Kazakhstan (TL) | |
| Skvortsova et al. (1965) +1 other reference |
Mexico | |
| Excalibur Mineral Company specimen |
Picacho, Bacoachi, Bacoachi Municipality, Sonora, Mexico