Free Online Bible Library | Ruby

We also have classes for:

Courses cover a wide range of Bible, Theology and Ministry topics.

Would you do us the favor of answering this two question poll so we can know how to serve you better? You will also be given the opportunity to join our team tasked with how to make better. Thank you.  --Bill Mounce



RUBY, sometimes referred to as oriental ruby, is a relatively rare and costly precious stone, generally red to deep crimson in color, but sometimes with pale rose or purple tints. Like sapphire (q.v.) it is a variety of corundum (aluminum oxide) which, next to diamond, is the hardest known naturally occurring mineral. The red color of ruby is thought to be due to the presence of traces of chromium. Rubies occur in crystalline limestones and in gem-bearing gravels derived from these rocks, the best gems coming from Burma.

See also

  • Minerals
  • [[Precious Stones