Non-silicate minerals are a diverse group of minerals that do not contain silicon and oxygen in their chemical structure. They are classified into several categories, including carbonates, oxides, sulfates, and halides. Common examples of non-silicate minerals include calcite, gypsum, and halite. These minerals play essential roles in various geological processes and are often used in construction, manufacturing, and agriculture. Unlike silicate minerals, which make up the majority of the Earth's crust, non-silicate minerals are less abundant but still significant. They can be found in sedimentary, metamorphic, and igneous rocks. Understanding non-silicate minerals is crucial for fields such as geology, mining, and environmental science.