Lotuses are symbols of purity and 'spontaneous' generation and hence symbolize divine birth. As something that is associated with rebirth & birth, it is no surprise that the lotus flower is also associated with death, and the famous Egyptian book of the dead is known to include spells that are able to transform a person into a lotus, thus allowing for resurrection.
Moonstone is a crystal of many myths and legends. One famous legend from Vedic history talks about the battle between Vishnu and Bali, the demon god. When Vishnu broke Bali’s body into pieces, the parts that fell on Earth turned into different jewels. The sparkle in his eyes became “Chandrakanta" or what we now call moonstones.