Rainbow Moonstone has been used in jewellery for thousands of years. It is said to provide psychic protection, clearing the mind and senses, and to aid in lucid dreaming. It is primarily a talisman of the inner journey, taking one deep into the self to bring light to the darkness of one’s personal night.
Since earliest times, Moonstone has been a tangible connection to the magic of the moon - an amulet of protection for travelers, a gift of lovers for passion, a channel for prophecy, and a path to wisdom, deflecting negativity and easing emotional trauma.
Named for its moon-like sheen, Moonstone is a Feldspar mineral exhibiting a soft, watery opaqueness and a silvery-white reflection called chatoyancy that moves as a line across the surface as light varies.
Rainbow Moonstone Gemological Properties:
Chemical Formula: NaAlSi3O8 to CaAl2Si2O8 Sodium calcium aluminum silicate
Crystal Structure: Triclinic; prismatic
Color: Colorless, blue sheen, multicolored sheen
Hardness: 6 - 6.5 on the Mohs scale
Refractive Index: 1.559 - 1.570
Density: 2.65 - 2.75
Transparency: Transparent to translucent
Double Refraction or Birefringence: 0.008 to 0.010
Luster: Vitreous to pearly
Fluorescence: Yellow striations