According to the Gemological Institute of America (GIA), “Rainbow moonstone is transparent labradorite, a closely related feldspar mineral with sheen in a variety of iridescent colors. Although it’s technically not moonstone, it’s similar enough that the trade has accepted it as a gem in its own right.”
“To be called moonstone, a mineral’s actual identity is not as important as the beauty of its adularescence,” they note. “Today some people prefer it to traditional moonstone.”
Moonstone Properties: Awareness of Cycles, Feminine energy, Fertility, Abundance, Enhance Intuition, Emotional Balance, Hormone balance, pregnancy, birthing, protection for mothers and children, Calming