One gemstone is born in fire: peridot, the volcanic gem. Small crystals of peridot are often found in the rocks created by volcanoes and also can be found in meteors that fall to earth! Ancient people called it “the jewel of the sun” and Romans called it “the jewel of evening” because its green color does not fade at night and it could be seen by the light of a lamp.
Peridot is usually distinguished by its transparent olive color and increased hardness, which reaches up to 6.5. Comparatively, The harness of granite is 5. Olive-colored peridot mines are rare in the world.