Peridot (Olivine)
Peridot or Olivine is one of few Gems that only come in one color, Green. It is know as the extreme gem as it can found in Specimens have been found in meteorites and dated at over 4.5 billion years old! It was mined by the Egyptians on the red sea Island of Zabargad and they called it the Gem of the Sun. Peridot is a beautiful and affordable natural gemstone.
Mineral: Olivine
Refractive Index: 1.65 to 1.69
Specific Gravity: 3.34
MOHS Hardness: 6.5 to 7