Family: Chalcedony (a cryptocrystalline quartz)
Colour: Brownish red to orange, translucent to opaque
Hardness: 6.5 – 7 (as per Mohs hardness scale)
Sources: Mainly Brazil, India, Uruguay
Interesting Facts: The colour of the carnelian comes from iron and it is reputedly named after the colour of a kornel cherry. In ancient times carnelian was used to make cameos.
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