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.
Volcanic and plutonic rocks are types of igneous rock. Volcanic rocks form when lava cools and solidifies on earth and plutonic rocks form when magma cools and solidifies below earth.Learn about different characteristics of these igneous rocks.olcanic rocks are also known as 'extrusive igneous rocks.' We see from their definition that volcanic rocks form on the surface, or 'exterior,' of the earth. If you remember that 'extrusive' and 'exterior' both start with the letters 'ext,' it may help you recall this term.