peridot

[ per-i-doh, -dot ]

/ ˈpɛr ɪˌdoʊ, -ˌdɒt /

a green transparent variety of olivine, used as a gem.

Origin of peridot

1300–50; < French péridot; replacing Middle English peritot < Middle French

per·i·dot·ic

[per-i-dot-ik, -doh-tik] /ˌpɛr ɪˈdɒt ɪk, -ˈdoʊ tɪk/, adjective

The emerald rainstorm contains a bright green mineral of a class called olivine—also known as peridot to us Earth-dwellers.

Space Bling: From Diamond Planets to Crystal Oceans to Precious Moon Jewels |Alexa Valiente, Jaewon Kang |October 13, 2012 |DAILY BEAST
Some fine gems of peridot, garnet and turquoise have been found.

Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5 |Various
The name is unfortunate as it is identical with the true name of the mineral which gives us peridot.

A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public |Frank Bertram Wade
True olivine (the peridot or the chrysolite of the trade) is of a fine leaf-green or bottle-green shade in the peridot.

A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public |Frank Bertram Wade

I examined the basaltic rock on several spots, and found that it contained numerous crystals of Peridot.

Journal of an Overland Expedition in Australia |Ludwig Leichhardt
Chrysolite (peridot, or olivine) was regarded in Shakespeare's time and earlier as of exceptional rarity.

Shakespeare and Precious Stones |George Frederick Kunz

peridot

/ (ˈpɛrɪˌdɒt) /

a pale green transparent variety of the olivine chrysolite, used as a gemstone

C14: from Old French peritot, of unknown origin