Athermite reaction released large amount of heat and light resulting in the melting of the iron metal that forms during the reaction the balanced chemical equation given below fe2o3+2al-> al2o3+2fe

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.