If the chips in your driveway formed over time, skim coating and sealing the surface is a simple cosmetic solution. For a new driveway, excessive chipping can indicate that the slab itself is weak. Causes for weak concrete include drying out the surface too quickly or low quality concrete.
Igneous rocks are rocks that have formed out of magma (molten rock). The two types of igneous rocks most common on Earth are called granite and basalt. Granite is a rock that typically looks pink and white with black specks.Basalt generally just looks black.o summarize, the two types of igneous rocks by chemical composition are felsic and mafic. Granite-typically composed of orthoclase, hornblende, biotite, and quartz-is a felsic rock type. Basalt is mostly olivine, augite, and calcium-rich plagioclase, therefore mafic. slide 3 of 6.
It all starts with igneous rocks. The Earth is believed to have been entirely molten in its early stages of development. Hence, all other rock types are derivatives of igneous rocks. Some important igneous rocks from left to right: gabbro, andesite, pegmatite, basalt, pumice, porphyry, obsidian, granite, and tuff.ence, all other rock types are derivatives of igneous rocks. Some important igneous rocks from left to right: gabbro, andesite, pegmatite, basalt, pumice, porphyry, obsidian, granite, and tuff.