Moissanite is a hardwood mineral that was discovered over a century ago by Dr. Henry Moissan, a Nobel Peace Prize winner in 1893. Where did he discover this mineral? In a meteor crater. When the meteor crashed to earth it was evidently covered in trees which when it crashed into the earth's surface the trees impacted into a mineral that was similar to a diamond.
Because this mineral isn't found anywhere on earth, scientists began trying to make a synthetic form of this mineral. In 1995 scientists decided this synthetic mineral would be great as a gemstone. It is so like the real thing (diamonds) that often times jewelers have trouble telling it from a real diamond.