Minerals identify

Know how to recognize them



Amphibole ( /ˈæmfɪboʊl/) is a group of inosilicate, forming prism or needlelike crystals, composed of double chain SiO 4 tetrahedra , linked at the vertices and generally containing ions in their structures. Amphiboles can be green, black, colorless, white, yellow, blue, or brown. The International Mineralogical Association currently classifies amphiboles as a mineral supergroup, within which are two groups and several subgroups.