What minerals can be used in jewelry decoration mechanical parts and abrasives?

Common minerals used in jewelry decoration include gemstones like diamonds, sapphires, and rubies, known for their beauty and durability. Mechanical parts often utilize minerals such as talc and graphite for their lubricating properties, while abrasives can include corundum (alumina) and silicon carbide, which are used in sanding and cutting applications. These minerals are valued for their unique physical and chemical properties, making them suitable for various industrial and decorative uses.