With its lovely translucent glow, chalcedony is one of our most popular stones. These blue chalcedony cabochons are reminiscent of a blue summer's sky and perfect for your jewellery creations and will look great teamed with silver. Available in a range of shapes and sizes for your jewellery designs and needs. If you prefer a lighter aqua coloured chalcedony cabochon, please see code H127 Cabochon (flat bottom, smooth domed top, undrilled) Hardness of 6.5-7 on the Mohs scale Healing properties: enhance creativity and calmness Treatment: dyed Sold individually Country of Origin: Brazil, India, Madagascar, Morocco, Mexico and Namibia Natural and untreated chalcedony cabochons are also available here NB As these stones are dyed the colour of these stones can vary in shade from pale blue through to a deep blue