Type
Mineral
Mineral Classification
Autunite
Chemical Formula
2[Ca(UO2)2(PO4)2·10-12H2O]
Streak
Pale Yellow
Mohs Hardness
2-2.5
Autunite
Release time：22 August 2019
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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