One of the mysteries of the English language finally explained.
A yellowish earthy mineral which is an ore of uranium. It consists of a hydrated vanadate of calcium and uranium.
- ‘They are associated with tyuyamunite in Turkistan and with autunite at Bukhova, Bulgaria, and at Mt. Painter, South Australia.’
- ‘Tyuyamunite is closely related to carnotite as indicated by the chemical formula.’
- ‘The chemistries are very similar with potassium replacing calcium and a different percentage of water, however the structures are slightly different as tyuyamunite is orthorhombic and carnotite is monoclinic.’
- ‘The bright-yellow mineral tyuyamunite is one of the most common uranium ore minerals.’
- ‘When it is exposed to weathering, a thin yellow-green coating of carnotite or tyuyamunite may form on its surface.’
Early 20th century: from Tyuya Muyun, the name of a Kyrgyz village, + -ite.
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