The basal section of amphibole is six-sided while the same of pyroxene is eight-sided. this is because of the absence of the crystal face (a) {100} (b) {011} (c

The basal section of amphibole is six-sided while the same of pyroxene is eight-sided. This is because of the absence of the crystal face (A) {100} (B) {011} (C) {111} (D) {010}