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Education Centre

Peridot

Peridot has always been associated with light. The Egyptians called it the “gem of the sun”

Peridot is usually transparent. It comes in and attractive range of colours, from brownish or yellowish green to greenish yellow. Customers will be attracted to the bright lime greens and more subdued olive greens of the lovely gem.

This gem is relatively inexpensive and plentiful, and normally available in standard shapes and calibrated sizes up to 5cts.

Peridot is one of the US birthstones for August (sardonyx is the other)

General Info

Major Sources

China, Australia, Brazil, Myanmar, Kenya, Mexico, Sri Lanka, US

Stability

Environmental Factor

Reaction

 HeatRapid or uneven heat can cause fracturing
 LightStable
 ChemicalsAttacked easily by sulphuric acid, and less easily by hydrocholic acid; can be attacked over a long period of time by acid perspiration

Quality

  • AA - Eye clean; medium to dark, yellowish green; good cut
  • AA - Arizona Peridot: eye clean to slight imperfections; medium to dark, slightly yellowish green; good cut; mined in Arizona

Characteristics

Hardness

6.5-7 on the Mohs scale

Toughness

Fair to good

Care

Peridot is rated "fair" for everyday wear with care. Avoid exposure to heat and sudden changes in temperature. Avoid contact with chemicals.

To clean, gently scrub with a soft toothbrush and a solution of mild dish soap and warm water.

Further care instructions