Ionic and covalent bonds are similar because a) Both involve the formation of ions
b) Electrons are shared in both types of bonding
c) Atoms bond in order to have octets in both types of bonding
d) Both generate unstable bonds

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.