Ruby is an aluminum oxide red in color. It is the hardest mineral after diamond. It symbolizes the energy of the sun and the will of the Universe. It is considered a stone with extremely high energy, stimulates sexuality, evokes courage and gives boldness for action.
Sapphire is a variety of silver oxides. Its blue color is due to the Iron and Titanium it contains. It is considered the gem of clear perception, abstract understanding, and cosmic wisdom. It clears the negativity of the mind and aids communication. In the Bible, it is identified with the fifth tribe of Nephthalim. Ιn the Revelation of John, it is referred to as the second stone of the new Jerusalem. It is quarried in Australia, Burma, South Africa, and Russia.