A ruby is a pink to blood-red colored gemstone. The red color is caused mainly by the presence of the element chromium. Its name comes from ruber, Latin for red. Other varieties of gem-quality corundum are called sapphires. The ruby is considered one of the four precious stones, together with the sapphire, the emerald, and the diamond.
I like this one:
No comments:
Post a Comment
Thank you for your comment! I hope you like my blog and you will came back every day to read me! Add me to your blog list!