Chalcedony is a silicon dioxide mineral composed of sub microscopic Quartz grains, coloured and sometimes patterned with other pigments: it has a trigonal crystal system. The name Chalcedony may have been derived from the Greek port city of Chalcedon. Varieties of Chalcedony were worked into jewellery and carvings by ancient civilisations in Egypt, Greece and Rome. Chalcedony is a nurturing stone that promotes brotherhood and goodwill and enhances group stability. It can be used to assist thought transmission and telepathy! Chalcedony brings the mind, body, emotions and spirit into harmony: Instilling feelings of benevolence and generosity. Chalcedony removes hostility and transforms melancholy into joy. Psychologically, Chalcedony eases self-doubt and facilitates constructive inward reflection. It absorbs and dissipates negative thoughts, emotions and bad dreams. Medically, this stone increases physical energy. It balances body, emotions, mind and spirit and heals they eyes, gallbladder, spleen, blood and circulatory system. Types and Colours Pink Chalcedony encourages kindness and all good qualities. A calming stone for children. Blue Chalcedony opens the mind to assimilate new ideas. Purple Chalcedony is reputed to help one rid themselves of unwanted things in one’s life; aids in avoiding messy emotional involvements with cause distress. Red Chalcedony shows strength and persistence in reaching goals. Dendritic Chalcedony promotes clear and precise thought. Caribbean Blue Chalcedony can calm anxieties and stress, and bring emotional healing in times of grief. White Chalcedony transforms sleep into a creative time to find solutions. Zodiac: Taurus and Pisces Birthstone: May and March Chakra: Heart Sources: USA, Austria, Czech Republic, Slovakia, Iceland, Mexico, Britain, New Zealand, Turkey, Russia, Brazil, Morocco. Hardness: 7 Empowerment: I will accept as well as show kindness.