Porphyry Processing Plant and Porphyry Production Equipment
Natural Sand Making Machine Vertical Roller Mill for Sale from China; ... granite porphyry, syenite porphyry. Porphyry is very hard, has good compression resistance, wear resistance, and corrosion resistance. Its maximum compressive strength can reach to 300MPa even more. The Mohs hardness of it is 7 degree. Porphyry resources are very rich.