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.
One of the most common igneous rocks is granite (Figure 4.9). Granite is used extensively in building materials and making statues. Perhaps you have used a pumice stone to smooth your skin or to do jobs around the house.