1 kg of Tumbled Franklinite - Small Responsibly sourced and geologist certified tumbled stone, perfect for jewelry-making, crafting, pocket stones, and more! This Rock Crystal Quartz was certified in the Geoworld Geo-paleontological laboratory in Italy under the supervision of expert geologist, Dr. Stefano Piccini. Origin: USA Chakra: 1st (Material Body), 2nd (Creativity & Personality) Zodiac: Scorpio, Capricorn, Taurus Franklinite is a rare zinc-iron oxide mineral from the spinel group, found exclusively in the Franklin and Sterling Hill mines of New Jersey. Its deep black surface, metallic luster, and natural magnetism make it a unique mineral both scientifically and metaphysically. While Franklinite itself is not fluorescent, it often contains or occurs with fluorescent inclusions, such as willemite or calcite, which glow brilliantly under black light, creating a striking visual display in the dark. Images are approximations; product varies naturally in size, shape, and color.