How are gold a mineral and limestone sedimentary rock alike and different?

Gold and limestone differ fundamentally in their composition and formation processes. Gold is a native element and a mineral, primarily composed of pure metallic gold, formed through geological processes like hydrothermal activity. In contrast, limestone is a sedimentary rock primarily made up of calcite, derived from the accumulation of organic material and minerals over time. Despite these differences, both can be found in various geological environments and are valuable resources, with gold being prized for its rarity and use in jewelry and electronics, while limestone is used in construction and industry.