This is a specimen of "QR code" Fluorite from China. The term refers to the distinctive etched surface patterns resembling QR codes or labyrinths, visible on the cubic crystal faces. These geometric etchings are a result of natural dissolution and re-crystallization processes. The specimen displays light purple and greenish zoning under certain angles of light, with excellent visibility of the etched texture. The crystals are well-formed and sit on a contrasting white matrix. This specimen comes from a reputable source and has not been altered or treated in any way—what you see is its natural form. The photos are taken under daylight-equivalent LED lighting to show the specimen as accurately as possible. Please note: some colors can be difficult to capture accurately in photographs. I do my best to present the specimen faithfully. All items are professionally packed and shipped with tracking. I have many years of experience in international mineral sales and strive to provide accurate descriptions and high-quality service. Feel free to reach out with any questions—I'm happy to help.