TAM STONE (TRES AMIGO MEXICAN STONE) Company is a subsidiary of MARMIFERA a Mexican based natural stone company. MARMIFERA owns best quality of travertine’s and onyx. We are quarry owners and producers able to supply all over the world with competitive prices. Marmifera process the Marble, Travertine’s and Onyx starting from the quarrying, processing up to the finished transformed product, trading rough, semi-finished and cut to size slabs.