Peridot
Peridot — Natural Green from the Olivine Group
Peridot is a gemstone in the olivine group, composed of magnesium iron silicate. Iron is part of its composition and contributes to its characteristic green colour.
Its shades range from yellowish green to green, sometimes with a brown component. It is particularly known for a fresh green colour and vitreous lustre.
Gemological Properties
| Mineral group | Olivine |
|---|---|
| Composition | (Mg,Fe)₂SiO₄ |
| Colour | Yellowish green to green, sometimes brownish green |
| Mohs hardness | 6.5–7 |
| Refractive index | Approximately 1.65–1.69 |
| Specific gravity | Approximately 3.34 |
| Crystal system | Orthorhombic |
| Lustre | Vitreous |
| Optical characteristic | Relatively strong double refraction |
Colour, Clarity and Cutting
Assessment considers the green hue, colour intensity, transparency and inclusions. Appropriate cutting highlights colour and light return.
Double refraction can make the junctions between facets at the back appear doubled when viewed through the stone in a suitable direction under magnification. This is an optical characteristic rather than a fracture or cutting defect.
Sources Around the World
Familiar sources include Pakistan, Myanmar, China, Vietnam and the United States. Zabargad Island in the Red Sea is a renowned historical source. Peridot also occurs in certain meteorites, but this is a rare source.
Identification and Care
Green colour alone is insufficient for identification. Examination combines optical properties, specific gravity and inclusions.
Protect against impacts, acids and sudden temperature changes. Clean with lukewarm water and mild soap, avoiding steam and ultrasonic cleaning.
Spiritual and Symbolic Meaning — Beliefs and Traditions
Peridot is associated with warmth, joy, generosity and a sense of abundance. It symbolises connecting will with an open heart and the courage to follow a personal path while considering others.
In spiritual symbolism, it is linked to strengthening self-worth and releasing guilt and regret. It accompanies an intention towards growth, meaningful activity and taking responsibility for the path we choose.
These meanings belong to the realm of belief and symbolism. They can give jewellery personal significance, but they are not proven gemological properties or a promise of healing, protection or a change in health.