Common examples of igneous rocks, which are demonstrated for studying rock characteristics include pumice, basalt, granite, gabbro, obsidian and rhyolite.he most abundant rock in the earth's crust is none other than the igneous rock type. It alone accounts to about 90 percent of all rocks in the top layer of the earth's crust.
The official state bird of Florida is the Northern Mocking bird, at least for now. The Florida Scrub Jay or possibly the Osprey may end up ousting the Mockingbird as our state bird.
Nevada designated the mountain bluebird (Sialia currucoides) as the official state bird in 1967 (also the state bird of Idaho). A member of the thrush family, the mountain bluebird lives in Nevada's high country and sings with a clear, short warble.