- Chemical composition: aluminium oxide with chromium Al2O3:Cr
- Hardness: 9 mohs scale
- Refractive index: 1.768–1.772
- Density: 4.0
Who can wear ruby
1. People having Aries, Leo, Libra Scorpio and Sagittarius ascendant in their birth chart can wear ruby after consultation of astrologer.
2. People having moon sign Leo can wear ruby after consultation of astrologer.
3) Ruby is also beneficial for rulers, politicians, government workers, leaders, managers.