Mineral groups are classifications of minerals based on their chemical composition and structure. The main groups include silicates, carbonates, oxides, sulfates, and halides. Each group shares similar properties and characteristics, making it easier for geologists to study and identify minerals. For example, silicates are the most abundant group, containing silicon and oxygen, while carbonates primarily consist of carbon and oxygen. Understanding these groups helps in identifying minerals and their uses in various industries, such as construction, electronics, and jewelry.