Zircon is one of the most important minerals in geology because it serves as a natural time capsule of Earth's...

Peridot is the gemstone variety of the mineral olivine and is one of the few gemstones that occurs naturally in only...

Tourmaline is one of the most diverse and colorful mineral groups on Earth. It occurs in nearly every color imaginable...

Every mineral crystal grows according to a specific geometric pattern. These patterns are grouped into seven crystal...

The Mohs Hardness Scale is one of the most widely used systems for identifying minerals. Developed by German...

Hardness is one of the most important physical properties used in mineral identification. It measures a mineral's...