Malachite (chatoyant) (ex Rolando Gioia Collection)

Item Description

This is a lovely large thumbnail / toenail specimen showing excellent chatoyancy similar to Bisbee material of the early 1900s. These crystals shimmer and change in reflectivity as you turn the piece in the light. This piece has an elegant form that I would say is almost in the form a "feather". Even in static and unmoving, you can see the cat 's eye-like effect as you move to look at the piece from different angles. I know it is "just Malachite" to some people, but I can say I have handled thousands of them over the years, and this one is very attractive for what it is. From the collection of Rolando Gioia (a contributor to new definitive book on Brazilian minerals: "Minerais e Pedras Preciosas do Brasil").