1. a fire started without any help endothermic 2. most dangerous radiation salt 3. rusting reactants 4. product of acid plus base hard water 5. substances united in a reaction plasma phase 6. a reaction which takes in energy slow oxidation 7. contains mineral salts sun 8. nuclei and free electrons spontaneous combustion 9. fueled by fusion gamma rays

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.