Title | Forsterite, faceted peridot |
Description | Peridot 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 | . |
Location | USA ▹ Arizona |
Photographer | Darla Sondrol. 2002-01-27. |
Collection | Ward’s Natural Science. |
Key words | forsterite, olivine, peridot, Arizona |
Tech details | 33 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 2206 |
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