Ruby other rubies of similar quality. After color follows clarity: similar to diamonds, a clear stone will command a premium, but a ruby without any needle-like rutile inclusions may indicate that the stone has been treated. Ruby is the traditional birthstone for July and is usually more pink than garnet, although some rhodolite garnets have a similar pinkish hue to most rubies. The world's most valuable ruby is the Sunrise Ruby. Rubies have a hardness of 9.0 on the Mohs scale of mineral hardness. Among the natural gems only moissanite and diamond are harder, with diamond having a Mohs hardness of
Gemstone industry in Greenland commercial ruby mining operation. Stakeholder meetings were held in Nuuk and Qeqertarsuatsiaat in February 2011. The company's proposals for the potential mining operation were well received at the meetings, and more discussions will be undertaken with respect to issues raised; particularly training, employment, and further encouragement of local gemstone and jewelry initiatives. The company's formal filing of a draft exploitation (mining) licence was submitted in June 2011 and was accepted in June 2013. Company and government public hearings were held in August 2013. In March 2014, the company was granted an exclusive 30-year exploitation (mining) license for Aappaluttoq. The company