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By Isabelle Corvin, CG, Panowicz Jewelers Adularescence and labradorescence are phenomenal lighting effects that add a unique and ethereal charm to certain gemstones. Another term for these effects is the 鈥淪chiller effect,鈥� and at its core, adularescence and labradorescence are a scattering of light. Adularescence and labradorescence are most commonly observed in feldspar. The feldspar group is a vast collection of minerals, one of the most common found in Earth鈥檚 crust, and includes gemstones like moonstone, labradorite, andesine, amazonite, sunstone, and many more. When feldspar minerals grow, the layers鈥攖he building blocks鈥攁lternate between different types of feldspar, creating microscopic gaps. When