GEOLOGY

Detailed explanation-1: -A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter. Common rocks include granite, basalt, limestone, and sandstone.

Detailed explanation-2: -A mineral is a naturally occurring substance with distinctive chemical and physical properties, composition and atomic structure. Rocks are generally made up of two of more minerals, mixed up through geological processes.

Detailed explanation-3: -About 200 minerals make up the bulk of most rocks. The feldspar mineral family is the most abundant. Quartz, calcite, and clay minerals are also common. Some minerals are more common in igneous rock (formed under extreme heat and pressure), such as olivine, feldspars, pyroxenes, and micas.

Detailed explanation-4: -Rocks are made up of minerals, the exception being glassy rocks (eg., some rhyolites). Most rocks are polymineralic (i.e., contain more than one mineral); however, a few are monomineralic, eg., limestone and marble.

Detailed explanation-5: -To geologists, a rock is a natural substance composed of solid crystals of different minerals that have been fused together into a solid lump. The minerals may or may not have been formed at the same time. What matters is that natural processes glued them all together.