Tenebrescent Hackmanite Rough – Badakhshan, Afghanistan A fascinating lot of Natural Hackmanite rough from the Badakhshan mines of Afghanistan, with a total weight of 56 grams comprising 85 individual pieces. This lot is particularly attractive because of its tenebrescence, the remarkable reversible colour-changing phenomenon for which Hackmanite is well known. Under UV light, the pieces display three distinct colours: vivid yellow, intense sapphire-like blue and rich purple reminiscent of amethyst.The colour changes are clearly visible in the photographs provided. The pieces have an attractive natural lustre. The smaller crystals show transparency, while the larger pieces are predominantly opaque. The material also offers good lapidary potential: selected smaller pieces can be considered for faceting, while the larger pieces are well suited for cabochons or other decorative applications. Hackmanite is an uncommon and highly sought-after mineral among collectors, particularly because of its combination of attractive colour and UV-induced tenebrescence. This parcel provides a good variety of sizes and appearances for both collectors and lapidaries. Specifications: Mineral: Natural Hackmanite Origin: Badakhshan, Afghanistan Total Weight: 56g Number of Pieces: 85 Phenomenon: Tenebrescence / reversible UV-induced colour change UV Colours: Yellow, vivid blue and purple Lustre: Excellent Transparency: Transparent to translucent Lapidary Potential: Faceting and cabochon cutting Treatment: Natural rough material; no treatment SELLER DESCRIPTION Shipping & delivery: Shipped within 1 to 3 business days maximum, typically the day after the order. Shipping Monday to Friday (excluding weekends and public holidays). Each package is sent YUN EXPRESS with a tracking number provided. Careful packaging: each stone is protected individually, then placed in a secure rigid box. – Guarantee & customer service: 100% of shipments are guaranteed: in case of any issue, we always find a solution. You buy with confidence: full refund, replacement or courtesy gesture in case of loss or proven problem. If you have questions, doubts or a specific request, you can contact me at any time; I will gladly respond as soon as possible. Trust & commitment Each stone is photographed with care to reflect its natural beauty. You benefit from personalized tracking. My goal: offer you a reliable, human and transparent shopping experience. Thank you for your support. Do not hesitate to check our no-reserve auctions to discover other exceptional products and follow us to stay informed about new offers.