is 30.80 KB, has a resolution of 600x604 pixels and was uploaded on September 27, 2018 @ 2:39 am by user: adoloss. It is filed under the tags: sign, ruby, mohs scale of mineral hardness, symbol, sapphire. Click the blue button at the top to freely download: Sapphire Gemstone Ruby Amethyst Lapis Lazuli png.