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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.
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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.
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Crystal Structure
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 |
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