Olivine, known as peridot, The mineral olivine jewelry is magnesium-iron silicate, (Mg,Fe)2SiO4, is one of the most mispronounced of gemstone names.a common silicate mineral in basalt and the igneous rocks of the oceanic crust.

Olivine gem is usually named for its typically olive-green color, though it may alter to a reddish color from the oxidation of iron. It has a conchoidal fracture and is rather brittle. The hardness of olivine is 6.5–7, and it has a vitreous luster. It is transparent to translucent.

Olivine/peridot gemstone variety, The correct pronunciation has peridot rhyming with doe or depot. Peridot is the birthstone of August and is usually a very affordable colored gemstone. Peridot jewelry is a colorful, affordable and attractive gemstone. Peridot is often compared to the rich dark green of emerald and in this comparison it is often found lacking. But peridot has its own unique green-yellow color that is different from emerald and in this comparison is rather unfair. The best colored peridot has an iron percentage and includes nickel and chromium as trace elements that may also contribute to the best peridot color.