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

Gemstone History and Properties Rubies and sapphires are composed from oxidized aluminium that became glasslike and transparent under...

Gemstone History and Properties The Cat’s-Eye Chrysoberyl, also known as Cymophane, is one of the gem varieties of the mineral...

Gemstone History and Properties Certain gemstones are not a product of geological processes beneath the earth, but instead come from...

Gemstone History and Properties Rubies and sapphires are composed from oxidized aluminium that became glasslike and transparent under...

Gemstone History and Properties Rubies and sapphires are composed from oxidized aluminium that became glasslike and transparent under...

Gemstone History and Properties Certain gemstones are not a product of geological processes beneath the earth, but instead come from...

Gemstone History and Properties The Diamond has several unusual characteristics that make it quite distinct when compared to other...

Gemstone History and Properties The Emerald belongs to the beryl mineral group, which is distinguished by the chemical formula...