Tenebrescent rough Hackmanite under UV Light Rough- 36 g - (33)

Tenebrescent Hackmanite Rough – Badakhshan, Afghanistan
A fascinating lot of Natural Hackmanite rough from the Badakhshan mines of Afghanistan, with a total weight of 36 grams comprising 33 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 better transparency, while the larger specimens are predominantly translucent. 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: 36 g
Number of Pieces: 33
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 stated


Shipping Note
Please note: This lot will be shipped from China via Yun Express. The shipment may therefore take some time depending on the destination and local customs procedures. Buyers are kindly requested to consider the shipping origin and transit time before bidding.