In addition to their fascinating appearance, gemstones have amazing powers that have been tried and tested for thousands of years.
This time we take you to Asia Minor, where the story of chalcedony began: that of a stone of speech and serenity.
Color
Blue, bluish milky gray, pale mauve
Composition
Silicon dioxide
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Where does chalcedony come from?
Chalcedony takes its name from Chalcedon, an ancient Greek city on the Asian shore of the Bosphorus, today the Kadıköy district of Istanbul. It is a variety of quartz whose crystals are so fine they are invisible to the naked eye, which gives it its soft, milky look. Agate, carnelian and onyx are in fact varieties of chalcedony.
Today it is still mined in many deposits around the world, but the main ones are in Asia and supply the jewelry trade.
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