Gemstone History and Properties The humble Quartz, the crystalline form of oxidized silicon, is in fact the most abundant mineral on...

Gemstone History and Properties Carnelian is a form of chalcedony, a name given to gemstones which are composed of many tiny Quartz...

Gemstone History and Properties The humble Quartz, the crystalline form of oxidized silicon, is in fact the most abundant mineral on...

Gemstone History and Properties Few gemstones possess as unique a color as the lime-green Peridot, a rare gem variety of the mineral...

Gemstone History and Properties Moonstone is the common name given to two different feldspar gemstones which have a somewhat similar...

Gemstone History and Properties The Garnets are a large and diverse mineral group with various chemical compositions which follow the...