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Fire Opal Gemstone Information.
Information * Loose gemstones * Jewelry links
Fire Opal is an appreciated variety of opal that is strongly characterized by its range of color from yellow to orange. The value of this stone is increased when splashes of color are visible inside the stone. Fire opal is not resembled by any other stone.
 View examples of cut Mexican fire opal below and prices in our store section.
 

ENHANCEMENT CODE E

Click to view AGTA code.

PROPERTIES
 Refractive Index 1.45
Hardness = 5-6.5 (Moh's Scale)
Specific Gravity =2.15
Species - Opal
Optic Character - Single Refraction, Aggregate Double Refraction-Common.
Phenomena - Play of color
WARNINGS FOR CARE
Ultrasonic: Never use.
Steamer: Never use.
Heat: Very poor; may cause cracking.
Chemicals that harm: Hydrofluoric acid can damage.
 
Crystal Structure
Mexican fire opal crystal image.
Crystal system: Amorphous. Kidney or grape shaped aggregate.
MAJOR SOURCES
Mexico		 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
Click image for gemstone price lists.

Fire opal crystal image. - Brilliant cut.
Round cut fire opal.
 
Fire opal crystal image. - Oval shape.
Oval shape fire opal.		  
Fire opal crystal image. - Pear Shape.
Pear shape fire opal.
Fire opal crystal image. - Trillion Cut.
Trillion cut fire opal.
 
Copyright 2001 GemOptions Jewelry.
Shipping Continuous United States, Alaska and Hawaii.
Prices in US Dollars subject to change without notice.