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M707 - A translucent variety of quartz, these specimens measure from 1.5 to 3 inches.
Carnelian is a chalcedony, a variety of quartz. Hardness 7. Silicon dioxide. Carnelian is a semi-precious gemstone. True carnelian shows cloudy color distribution in transmitted light. Colors range from red to brown-red. Carnelian is often used for lapidary work to make cabochons, beads and other stones for jewelry. Carnelian gemstones have been found in ancient Egyptian jewelry dating back over 5,000 years old.
In modern times, most of the carnelian used in the production of items for gemstones has been heat treated to enhance the color. Used in the production of beads for bracelets and necklaces, cabochons used in rings, bracelets, broaches and many other items, carnelian is very popular as a gemstone.
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