Ruby is one of the most famous and valuable gemstones in the world. It is the red variety of the mineral corundum and...

Apatite is one of the most important phosphate minerals on Earth and serves as the primary source of phosphorus used...

Barite is a barium sulfate mineral best known for its exceptionally high density. It is one of the heaviest common...

Mineral habit describes the typical external shape or growth form of a mineral crystal. Even when minerals share the...

Scientists classify minerals into groups based mainly on their chemical composition and crystal structure. This...

Crystal structure is one of the most important characteristics of minerals. It describes how atoms are arranged inside...