For reciting mantras and practising Mantra Yoga.
Astrological crystal chart with the 9 astrological gemstones (brilliant, moonstone, red coral, hessonite, blue sapphire, cat's eye, yellow sapphire and emerald).
In Vedic astrology, the Jyotish, each of the nine planets authoritative in this ancient science is associated with a particular gemstone. Jewellery that contains all nine gemstones in a harmonious arrangement is said to have a balance-producing effect and is considered to be powerful talismans