Prehnite, Epidote
Kayes Region, Mali
Thumbnail, 2.2 x 1.8 x 1.5 cm
You have probably seen these prehnite/epidote combo specimens coming out of Mali, but you have to really look around to fine the exceptionally aesthetic ones. As far as a thumber goes, you would be hard put to find a more perfect and elegant one than this: a single, doubly-terminated epidote crystal intergrown with a translucent ball of prehnite. 2.2 x 1.8 x 1.5 cm