Focus Materials

A heart of granite: the pyramids

Porphyry Valcamonica is one of the various Italian porphyry already known by the Egyptians who used it to build the pyramids.

Nero Zimbabwe is more a gabbro than a granite. 

The surprising quartzite.
There are very impressive and special materials in nature (quartzite, granite, and marble).
In this article, we’d like to talk about the formation and application of two materials that originally come from the same natural stone: Azul Imperiale and Azul Macaubas.