Peridot

Peridot is a very attractive greenish yellow to yellowish green gem.  Due to its relatively high birefringence, peridot can display visible doubling.

​Ancient Egyptians called peridot "the gem of the sun".​

Some peridot dates as far back as 4.5 billion years ago, being found in pallasite meteorites.  In 2005, peridot was found in comet dust retrieved by a robotic space probe.