1. Autunite :
Autunite is a yellow - Greenish fluorescent phosphate mineral hardness of 22 1/2. Due to the moderate Uranium content of 48.27% it is being considered as a radioactive mineral and used as a Uranium Ore. Autunite was discovered in 1852 near Autun , France. This mineral is also called as Calco - Uranite. But still this name is rarely used and outdated. Autunite changes its color from Bright green to Lime Green under UV rays. This mineral is Very Distinctive from others.
Formula :
Ca(UO2)2(PO4)2·10–12H2O.
2. Torbernite :
Torbernite is a radioactive mineral. Torbernite mineral is a that is popular among collectors who seek for Uranium Mineral. Torbernite is a radioactive mineral, hydrated green copper uranyl Phosphate mineral. Torbernite is isostructural with the related uranium mineral, autunite.
The chemical formula of torbernite is similar to autunite. There are differences. The number of water molecules can vary between 12 and 8. Torbernite is a most common alternative names for copper Uranite.
Formula:
Cu(UO2)2(PO4)2·12H2O
3. Uraninite :
Uraninite is a radioactive mineral. This is a Uranium rich mineral. This is the main ore of Uranium and Thorium. This mineral contains Oxides of leads and traces amount of Helium. This may also contain some rare earth element some times. This mineral is known from the 15th Centaury.
All Uraninite minerals contains a small amount of radium as radioactive decay product of Uranium. This is used as the Source material for the isolation of radium in 1910 by Marie Curie. The extremely rare elements Technetium and Promethium can be found in Uraninite in small quantities.
Formula :
U3O8
4. Zippeite :
Zippeite is a rare mineral but is sought after by collectors who seek uranium bearing minerals as well as minerals that are rare which is presented in it. This mineral is inconsistent. This mineral has a crystal habit.
Zippeite is a mineral that is found as a secondary mineral in the crust of the Uranium mines. This is a radioactive minerals and should be stored away from other minerals that are affected by radioactivity. The human exposure should be limited to this mineral.
Formula:
K3(UO2)4(SO4)2(OH)4·7H2O
5. Uranocircite :
It is phosphate mineral which contains barium. This mineral color is Green to Yellow. The mineral has hardness of 2. This contains Uranium amount of 45% and mainly mined in Saxony, Germany.
Formula :
(Ca,Fe3+)3(UO2)6(PO4)4(OH)6·8-10H2O
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