5.625 in Fantastic Prehnite spheres with Stilbite From Bendougou village (Bendoukou village; Benduko village), Bafoulabé Cercle, Kayes Region, Mali
Prehnite is usually a translucent, green to yellow, silicate mineral that includes calcium and aluminum.
Stilbite is another silicate made up of calcium and aluminum… and sodium. Stilbite is usually a white to cream colored mineral, and, in this case, for some reason, looks a lot like puffed rice cereal.
There is also some small amounts of black mineral on the specimen. Probably Epidote.
Fantastic collectors piece!
Weight: 10.5 oz or 301g
Size: 5.625 in x 2.25 in x 1.5 in