Gemstones in the Islamic world
Firoza - Turquoise. Turquoise is an opaque sky blue or teal green gemstone whose English name comes from 'Turkish Stone'. The word Firoza or Feroza has its origins in India and means 'successful' as well as 'turquoise stone' and is often a 's name. Muslim scholar, Imam al-Sadiq said, 'Whoever wears a turquoise ring will ...