page_title: Carnelian
section_title: Distinction between carnelian and sard
hierarchical_section_title: Carnelian / Distinction between carnelian and sard
caption_attribution_description: (in english) Art of the first cities&#160;: the third millennium B.C. from the Mediterranean to the Indus., p.&#160;395 English: Indus carnelian beads with white design imported to Susa in 2600-1700 BCE LOUVRE Sb 13099
context_page_description: Carnelian is a brownish-red mineral commonly used as a semi-precious gemstone. Similar to carnelian is sard, which is generally harder and darker. Both carnelian and sard are varieties of the silica mineral chalcedony colored by impurities of iron oxide. The color can vary greatly, ranging from pale orange to an intense almost-black coloration. It is most commonly found in Indonesia, Brazil, India, Russia, and Germany.
context_section_description: The names carnelian and sard are often used interchangeably, but they can also be used to describe distinct subvarieties. The general differences are as follows:
  All of these properties vary across a continuum, so the boundary between carnelian and sard is inherently blurry.
caption: Indian carnelian beads with white design, etched in white with an acid, imported to Susa in 2600–1700 BCE. Found in the tell of the Susa acropolis. Louvre Museum, reference Sb 17751.[13][14][15] These beads are identical with beads found in the Indus Civilization site of Dholavira.[16]
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