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Peridot Gemstone Information
Information * Loose gemstones * Jewelry links

Peridot is the birthstone for the month of August and the gemstone representing the 16th wedding anniversary. It was known to be dull by day, but "glow like a coal" at night. This "glow" let prospectors spot deposits in the dark and mark them for digging the next day. Peridot was thought to help dreams become a reality, and was often given as a symbol of fame, dignity, and protection.
 

ENHANCEMENT CODE N
Click to view AGTA code.

PROPERTIES
Refractive Index 1.654-1.690
Hardness = 6.5-7 (Moh's Scale)
Specific Gravity = 3.34
Species - Peridot.
Optic Character - Double Refraction.
Phenomena - None


WARNINGS FOR CARE

Ultrasonic: Risky to use.
Steamer: Never use.
Heat: Poor; rapid heat may cause fracturing or breakage.
Chemicals that harm: Sulfuric acid, hydrochloric acid,
pickling solution.
 

Crystal Structure
Peridot crystal image.
Crystal system: Orthorhombic; short prisms, vertically striated.

MAJOR SOURCES
China, Australia, Brazil, Myanmar, Kenya,
Mexico, Sri Lanka, US
Birthstones
 January  Garnet
February Amethyst
March Aquamarine
April Diamond
May Emerald
June Pearl/Alexandrite
July Ruby
August Peridot
September Sapphire
October Opal/Tourmaline
November Topaz or Citrine
December Blue Topaz or Zircon
Common Cut Examples.

Antique cut peridot image.
Antique.

Antique cushion peridot image.
Antique Cushion.

Straight baguette peridot image.
Straight Baguette.
 

Emerald cut peridot image.
Emerald cut.
 
Heart shape peridot image.
Heart Shape.

Marquise cut peridot image.
Marquise cut.
 
Oval shape peridot image.
Oval shape.
Pear shape peridot image.
Pear Shape.
Round cut peridot image.
Brilliant cut.


Princess cut peridot image.
Square cuts.
Princess cut.
Step cut.
 
Trillion cut peridot image.
Trillion Cut.
 
Square cabochon peridot image.
Square cabochon.
Buff top Faceted Bottom.

Round cabochon peridot image.
Round cabochon.
 
Oval cabochon peridot image.
Oval cabochon.
Pear shape cabochon peridot image.
Pear cabochon.


 

 
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Prices in US Dollars subject to change without notice.