The Astrological Bangle, was made popular by Paramhansa Yogananda, author of the Autobiography of a Yogi. Yogananda’s guru, Sri Yukteswar, created the Astrological Bangle formula based on very precise weights of pure silver, copper, and over a Troy Ounce 99.999%, 24Kt, fine gold.
Swami Kriyananda, a direct disciple of Paramhansa Yogananda, gave me the formula and the responsibility to make the bangle in 1985. I use the exact formula as Sri Yukteswar. They are an open bracelet that can be circled to fit any arm.
The ends are left simple (and not covered with a ball), as this is the way Yogananda had them made at Mt. Washington before he left the body.