Cornetite Extra Large Many Shades of Blue from Congo 31 cm 3.9 kg # 18464

Various shades of chatoyant blue cornetite. Color is a bit variable, appears a bit banded, as shown in photos. There is one spot of a white mineral coating on the surface, as shown in photos. Nice large specimen of hard to find mineral from Congo.

This item measures 31 cm x 23 cm x 11 cm. This item weighs 3950 grams.

Origin: Star of Congo Mine, Democratic Republic of the Congo.