This lot features natural Black Tourmaline (Schorl) crystal specimens, some beautifully combined with feldspar matrix. The crystals display well-defined prismatic forms with strong vertical striations and a natural vitreous to sub-metallic luster. All specimens are 100% natural and untreated, with no repairs, no stabilization, and no enhancements. Sizes and weights are listed individually. Minor edge contacts, natural fractures, or matrix separations may be present and are typical for natural tourmaline crystals. These specimens are ideal for mineral collectors, display cabinets, educational collections, or resale.