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Autunite

Autunite

Release time:22 August 2019
Autunite

Type
Mineral

Mineral Classification
Autunite

Chemical Formula
2[Ca(UO2)2(PO4)2·10-12H2O]

Streak
Pale Yellow

Mohs Hardness
2-2.5

Crystal System
Tetragonal, Orthorhombic

Color
Yellow, greenish-yellow, pale green; dark green, greenish black

Luster
Sub-vitreous, resinous, waxy, pearly

Fracture
Micaceous

Description

Autunite is a radioactive orthorhombic mineral which results from the hydrothermal alteration of uranium minerals. Used as a uranium ore, it was first discovered in France in 1852.

Uses

Autunite is used as a uranium ore. Uranium is used in nuclear fission to generate electricity. It may also be used as a cathode in photoelectric tubes. It was once used for making glazes in the ceramics industry due to its beautiful red color with yellow tinge.

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