A polished labradorite slab with flash on both sides! The purple flash is particularly noteworthy!
Labradorite is a feldspar mineral which is characterized by an iridescent optical effect (aka. The Schiller effect). This effect is described by the term, “labradorescence.” The cause of this optical phenomenon is phase exsolution lamellar structure, occurring in the Bøggild miscibility gap. The effect is visible when the lamellar separation is between 128 to 252 nm, the lamellae are not necessarily parallel, and the lamellar structure is found to lack long range order. The lamellar separation only occurs in plagioclases of a certain composition; those of calcic labradorite and bytownite (anorthite content of ~60 to 90%) particularly exemplify this. Another requirement for the lamellar separation is very slow cooling of the rock that contains the plagioclase. Slow cooling is required to allow the calcium, sodium, silicon, and aluminum ions to diffuse through the plagioclase and produce the lamellar separation; therefore, not all labradorites exhibit labradorescence (it might not be the correct composition and/or it cooled too quickly), and not all plagioclases that exhibit labradorescence are labradorites (it might be bytownite). Some gemstone varieties of labradorite exhibiting a high degree of labradorescence are called spectrolite. The geological type area for labradorite is Paul's Island near the town of Nain in Labrador, Canada. It has also been reported in Norway, Finland and various other locations worldwide.
Labradorite reminds the user that magic resides within them. It heightens intuition and enhances psychic abilities which makes labradorite great for working with the third eye chakra. Labradorite balances intuition and intellect. Illusions are dispelled and true intentions are seen more easily with labradorite nearby. In addition, labradorite is very protective against negative energies because it shields and protects one’s aura, as well as preventing energy leaks from one’s aura. Labradorite is useful during times of transformation and change. Also, it can help prepare the body and soul for ascension by opening the crown chakra. Labradorite calms an overactive mind while energizing the imagination. It is believed to impart strength and perseverance. Labradorite increases one’s faith in themselves and the Universe. Metaphysically, it improves overall health, relieves emphysema, and helps with smoking cessation. Those with Leo, Sagittarius, or Scorpio as their astrological sun sign will benefit most from the metaphysical effects of labradorite. Hold labradorite and affirm: “I welcome transformation into my life.”