| 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. |
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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  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. |
