THE MATERIAL LIBRARY
Peridot
The gem variety of olivine.
Colors & patterns
Yellow-green, olive and richer green tones.
Typical origins
Sources include the United States, Pakistan, China and Myanmar.
Hardness
6.5–7 on the Mohs scale.
Choosing & setting this material
Its green color is characteristic, but cleavage and sensitivity to sudden temperature change affect durability. Protect edges and avoid harsh cleaners.
Care & cleaning
Clean gently with lukewarm water, a little mild soap and a soft cloth, then dry. Avoid steam, ultrasonic cleaners, harsh chemicals and sudden temperature changes, especially when treatments are unknown.
Origins above describe typical sources of the material, not the origin of an illustrated or stocked stone. Hardness measures scratch resistance, not resistance to breaking. Confirm the identity and treatments of the actual piece.
Further reading: Material reference · GIA: gem treatments