Mineral Of The Day #70: Peridot
Mohs Hardness Scale: 6.5-7
Category: silicate mineral
Formula: (Mg, Fe)2SiO4
- Peridot is one of the few gemstones that occur in only one color: olive green.
- Olivine, the mineral from which peridot comes, is very abundant, however gem-quality peridot is rather rare.
- Peridot has been mined as a gemstone for 4,000 years. It is even mentioned in the Bible under the Hebrew word pitdah, and was used in the breastplate of the Jewish High Priest.
- Legend has it that peridot was the favorite gemstone of Cleopatra!
- It is the birthstone of August!
We dedicate this Gemstone Thursday to our colleague Sandy!