Mined for thousands of years before the time of Christ, this stone was highly prized for its colour. Artefacts dating from 7570 BCE have been found in the area inhabited by the Indus Valley Civilisation (7570-1900BCE) at Bhirrana (an archaeological site located in the Indian state of Haryana). which is the oldest site of Indus Valley Civilisation. Lapis Lazuli was […]