Uranopyrochlore 8.81 ct.

Uranopyrochlore

synonym od uranpyrochlore is a radioactive mineral with formula (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) and hardness of 4-5. Is a uranium cacium cerium hydroxy-fluoro-niobate/tantalate.It has a non metallic luster with blackish color. It comes from South Platte Pegmatite District,Front Range,Jefferson County,Colorado,USA.

Size: 11x10.2x7.2 mm.

Weight: 8.81 ct.

CODE#4797