Smithsonite from San Antonio Mine, Santa Eulalia Mining District, Chihuahua, Mexico

Smithsonite after calcite pseudomorph.

The way the smithsonite replaced the calcite give it a velvet like texture, it's a little bit translucent and the color makes it feel almost warm.

This is an uncommon quality of crystalization for this pseudomorph, also the way the crystals are arranged give a well balance composition to the whole piece.