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Carnotite is a potassium uranium vanadate mineral with chemical formula K2(UO2)2(VO4)2·3H2O. The water content can vary and small amounts of calcium, barium, magnesium, iron, and sodium are often present. It is a major ore of uranium. It is slightly radioactive.
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mineral uranium ore radioactive occurs uo2 vo4 yellow sandstone colorado vanadate also bright formula k2 3h2o references states content amounts
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Carnotite | 2V angle | Measured: 43° to 60°, Calculated: 26° to 36° | 1.00 | infobox |
| Carnotite | Birefringence | δ = 0.200 | 1.00 | infobox |
| Carnotite | Category | Vanadate mineral | 1.00 | infobox |
| Carnotite | Cleavage | Perfect on {001}, micaceous | 1.00 | infobox |
| Carnotite | Color | Bright yellow to lemon-yellow, may be greenish yellow. | 1.00 | infobox |
| Carnotite | Crystal class | Prismatic (2/m) (same H-M symbol) | 1.00 | infobox |
| Carnotite | Crystal habit | Crusts, earthy masses, foliated and granular aggregates. | 1.00 | infobox |
| Carnotite | Crystal system | Monoclinic | 1.00 | infobox |
| Carnotite | Diaphaneity | Semitransparent | 1.00 | infobox |
| Carnotite | Formula | K2(UO2)2 (VO4)2·3H2O | 1.00 | infobox |
| Carnotite | Fracture | uneven | 1.00 | infobox |
| Carnotite | IMA symbol | Cnt | 1.00 | infobox |
| Carnotite | Luster | Dull, earthy; silky when crystalline | 1.00 | infobox |
| Carnotite | Mohs scale hardness | 2 | 1.00 | infobox |
| Carnotite | Optical properties | Biaxial (−) | 1.00 | infobox |
| Carnotite | Other characteristics | Radioactive, not fluorescent | 1.00 | infobox |
| Carnotite | Refractive index | nα=1.750 – 1.780, nβ=1.901 – 2.060, nγ=1.920 – 2.080 | 1.00 | infobox |
| Carnotite | Space group | P21/a | 1.00 | infobox |
| Carnotite | Specific gravity | 4.70 | 1.00 | infobox |
| Carnotite | Streak | yellow | 1.00 | infobox |
| Carnotite | Strunz classification | 4.HB.05 | 1.00 | infobox |
| Carnotite | Twinning | On {001} as both twin and composition plane | 1.00 | infobox |
| Carnotite | Unit cell | a = 10.47 Å, b = 8.41 Å, c = 6.91 Å; β = 103.83°; Z = 2 | 1.00 | infobox |
| Carnotite | is a | potassium uranium vanadate mineral with chemical formula K2 | 0.90 | text |
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