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Coral,
pink color.
Information * Loose gemstones
* Jewelry links
Coral is the gemstone
representing the 35th wedding anniversary. It is thought to protect
against magic spells, to cure madness, and to give wisdom. In many
countries, coral is given to children as a gift for their
protection. Ancient Romans believed a dog collar made of coral would
prevent rabies; and if coral was worn by their children it would
protect them from danger. It was also believed that red coral
changed color according to the wearer's health, white at the onset
of illness, and yellow with black dots as death approached.
View examples of cut
coral
below and prices in our store section.
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ENHANCEMENT CODE N
Click to view AGTA code.
PROPERTIES
Refractive Index
1.560-1.570
Hardness = 3 (Moh's Scale)
Specific Gravity = 1.35
Species - Calcareous
Optic Character - aggregate
Phenomena - Surface sheen
REACTIONS/WARNINGS
Ultrasonic: Risky
Steamer: Risky
Heat: Very poor
Chemicals that harm: Easily attacked by many.
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Crystal Structure

Crystal system:
Hexagonal micro crystalline.
MAJOR SOURCES
US
(Hawaii), Australia |
Birthstones |
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January |
Garnet |
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February |
Amethyst |
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March |
Aquamarine |
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April |
Diamond |
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May |
Emerald |
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June |
Pearl/Alexandrite |
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July |
Ruby |
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August |
Peridot |
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September |
Sapphire |
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October |
Opal/Tourmaline |
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November |
Topaz or Citrine |
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December |
Blue Topaz or Zircon |
Cabochon is the popular cut used in jewelry
for coral.
Cabochons are smooth polished surfaces not
faceted.
Click
image for gemstone price lists. |
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