Moonstone or "Adularia", an orthoclase feldspar, was originally named for an early mining site at Mt. Adular in Switzerland. From this tradition we derive the term "adularescence" which is the optical phenomenon of iridescence which creates a billowy, floating blue to white light in this gem. Adularescence is due to diffraction of light as it hits thin, alternating layers of orthoclase and albite within the gem.
Rainbow moonstone is from the feldspar family of minerals. Rainbow moonstone is white or clear, and at times has a pearl-like color. The rainbow moonstone has natural white inclusions. Sparkling glimpses of red, gold, blue, and green can be seen, hence the name “rainbow moonstone.” Tiny albite crystals within the stone provide a shimmering glow known as adularescence.
BLACK MOONSTONE, also called SILVER MOONSTONE, is an excellent aid for accessing the Great Mystery of the Divine Feminine, New Moon Esbat and waning Moon rites, Dark Goddess or crone magic, shadow work, increasing intuition and revealing inner harmony, balance and peace. BLACK MOONSTONE is also useful for promoting success in business and love relationships.