Garnet is one of the most diverse and widely recognized gemstone groups in the world. Although many people associate...

Turquoise is one of the oldest known gemstones and has been treasured for thousands of years because of its...

Lapis lazuli is one of the most famous ornamental stones in human history. Revered for its intense royal-blue color...

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

Sillimanite is an aluminum silicate mineral that forms under high-temperature metamorphic conditions. It is one of the...

Andalusite is an aluminum silicate mineral commonly found in metamorphic rocks formed under relatively low-pressure...