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Carnelian

Carnelian Gemstone Information
Information * Loose gemstones * Jewelry links

In the eighth century, the Muslim leader Ja'afar ibn Muhammad proclaimed that wearing carnelian would guarantee the granting of all desires. This belief made this stone a popular talisman among the Muslims. In the 1700's, carnelian was known to bring luck, protection, and comfort. In the 1800's, carnelian was said to help those who needed courage to speak. This gemstone is used for clear thinking and to balance creativity and mental processing.
 

ENHANCEMENT CODE D
Click to view AGTA code.

PROPERTIES
Refractive Index 1.535-1.539
Hardness = 6.5-7 (Moh's Scale)
Specific Gravity =2.60
Species - Chalcedony
Optic Character - aggregate


WARNINGS FOR CARE
Ultrasonic: Usually safe
Steamer: Usually safe
Heat: Poor; color change may occur with heat
Chemicals that harm: Hydrofluoric acid, nitric acid.

 

Crystal Structure
carnelian crystal image.
Crystal system: Hexagonal fibrous aggregate.

MAJOR SOURCES
Brazil, India, Uruguay


 
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
Cabochon is the popular cut used in jewelry for carnelian.
Cabochons are smooth polished surfaces not faceted.

Common Cut Examples.
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