Which describes an asteroid? (select all that apply) They revolve around the Sun.
Many are found in the asteroid belt.
They come in many shapes and sizes.
They are made up of gases.

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.