A Geoscience Digital Image Library

TitleForsterite, faceted peridot
DescriptionPeridot is the gem variety of olivine, (Mg,Fe)2SiO4. Forsterite is the magnesium rich member with a pure formula of Mg2SiO4. Peridot is the birthstone of August and is usually a very affordable colored gemstone. Most peridot is forsterite and its color is caused by the presence of iron ions.
Geologic province.
LocationUSA ▹ Arizona
PhotographerDarla Sondrol. 2002-01-27.
CollectionWard’s Natural Science.
Key wordsforsterite, olivine, peridot, Arizona
Tech details33 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number2206