Hardness is one of the most important properties used to identify gemstones and minerals. It measures a gemstone's...

Crystal healing is the practice of using minerals and gemstones as part of spiritual, cultural, and wellness...

The terms precious and semi-precious stones have been used for centuries to classify gemstones. Traditionally, only...

Sulfur is one of the few minerals that occur naturally as a pure chemical element. Its bright yellow color, low...

Garnet is a group of closely related silicate minerals famous for their beautiful crystal forms, rich colors, and...

Olivine is one of the most important rock-forming minerals on Earth and a major component of the upper mantle. Known...