Information om | Engelska ordet COFFINITE

Exempel på hur man kan använda COFFINITE i en mening

• It is found in many minerals including uraninite (the most common uranium ore), autunite, uranophane, torbernite, and coffinite.
• However, approximately 100 km north of the lakes, there are several deposits of uraninite (pitchblende) / coffinite assemblages.
• Uranium occurs as the secondary minerals autunite and meta-autunite after uraninite and coffinite in fractured Cambrian metamorphosed shales and quartzite, at or near the contact with Jurassic porphyritic quartz monzonite.
• Uranium was present as meta-autunite, uranophane, uraninite, and coffinite in tufaceous fluvial sandstones of the Miocene Browns Park Formation.
• Ore minerals are uraninite and coffinite in unoxidized sandstone, and carnotite and tyuyamunite in oxidized sandstone.
• The most common are gummite (a mixture of minerals), autunite (with calcium), saleeite (magnesium) and torbernite (with copper); and hydrated uranium silicates such as coffinite, uranophane (with calcium) and sklodowskite (magnesium).

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