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.
North Carolina's state bird is the cardinal which was designated in 1943. The cardinal was chosen as the state bird because the North Carolina Bird Club initiated a campai â¦ gn to choose a bird for the state symbol. The cardinal was the popular vote.