Quartz with indicolite
Tourmaline, as inclusions in quartz is quite common especially the black variety, but the blue indicolite is uncommon.
This material is mined in a limited quantity in the area of Genipapo Mine, Itinga,Minas Gerais,Brazil. It is often cloudy with tiny crystals of indicolite arranged in a random order.This combination gives to the quartz a pleasant indigo blue color,sometimes lighter or darker,depending the quantity of indicolite needles. Untreated.