The Peridot (pronounced PEAR - A - DOE) is a very beautiful but lesser known gemstone. It was first discovered on Topazo Island in the Red Sea by the Egyptians who called it 'The Gem of the Sun'. Peridos are unique gemstones because they are always green. They are a form of Chrysolite - magnesium aluminium silicate - with an iron impurity which is responsible for its green colour. The depth of green is proportioanal to the percentage of iron. br br Peridot so orthorhombic br Lime green - olive green - and sea green br Even greens you've never seen br Yes - over forty shades of green. br Colours of all life and nature br Themes politic - themes scholastic br Peridot gems for all we know br Orthorhombic so Peridot. br br Peridots can rival emeralds br In their lustre and their value br Mined in enigmatic China br Blissful Burma - U S A. br Offers wearer full protection br With it fame and dignity br It also brings prosperity br Emeralds rival can Peridots. br br Peridot birthstone for August br Linked with Leo - powerful sign br Bringing health to lungs and liver br A peridot will bless the giver. br Peridot gemstone of Egypt br Worn to ward off evil spirits br By Romans to dispel a foe br August for birthstone Peridot br br Peridot so green so perfect br Peridot so orthorhombic br Peridots can rival emeralds br Peridot birthstone for August br August for birthstone Peridot. br Emeralds rival can Peridots br Orthorhombic so Peridot br Perfect so green so Peridot. br br Dedicated to the Angel of August. br br (John Knight - Frosty Colchester - 1 February 2010) br br .