loveringite

I hadn't heard of this mineral before, so here it is googled. One thing I do note is that this mineral formula doesn't contain any uranium, but it is a pretty unusual mineral, full of rare earth elements, which is pretty interesting ( alot of Uranium deposits do have an association with these). Cr and Zr are really bizarre. A very geologically unusual association.:

(Ca,Ce)(Ti,Fe+++,Cr,Mg)21O38
Help on Composition: Composition: Molecular Weight = 1,678.43 gm
Calcium 1.67 % Ca 2.34 % CaO
Cerium 2.50 % Ce 2.93 % Ce2O3
Magnesium 1.30 % Mg 2.16 % MgO
Zirconium 3.26 % Zr 4.40 % ZrO2
Titanium 35.66 % Ti 59.49 % TiO2
Aluminum 0.64 % Al 1.21 % Al2O3
Vanadium 0.61 % V 1.08 % V2O5
Chromium 6.82 % Cr 8.91 % CrO
Iron 11.31 % Fe 14.55 % FeO
Oxygen 36.22 % O
______ ______
100.00 % 97.09 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.7Ce0.3Ti12.5Fe2+3.4Cr2.2Mg0.9Zr0.6Al0.4V5+0.2O38