Peridot - An Evening Emerald Peridot originates from the olivine family. This is because of its color; however, it has a color of its own. This semiprecious gem is available at Semipreciousking in different hues of green like natural green, dark green, light green, bright green & much more. Peridot is known as August Birthstone as well as 16th wedding anniversary gift. Geological Occurrence Geologically, peridot is found in mafic rocks, ultramafic rocks, and xenoliths. The xenoliths are found in the mantle of the earth that is carried by lava on the surface of the earth. Not just …