Awesome ULTRA RARE HUGE Afghan Hackmanite Faceting & Cabbing Rough Lot! This truly is one of the most spectacular pieces we have been able to offer to date. The stone weighs in at almost 100 GRAMS and tenebresces the most amazing DEEP PLUM with a few minutes exposure to a UV light.

The stone overall is very gemmy and we truly wanted to cob it up to sell the clean sections particularly due to the great tenebrescence; however, we couldn't find it in us to hack this piece up. We have left that task for YOU so you may cob and/or saw this up as would be ideal for you. We are confident you will take out a slew of stones that range from 1-3 carats in the eye-clean to very slightly included end once faceted with excellent tenebrescence! It is rare to find Hackmanite from Afghanistan in Faceting and/or Cabbing form and than to find this size and colored rough are right up there next to impossible!

Hackmanite is known to change color by exposure to different forms of light and its color change is known to be tenebrescent. This change is repeatable and not permanent. In addition, Hackmanite also produces some wild colors under UV light and is highly sought after by collectors. We don't know if we will ever get any more of this material in this size so for all you collectors this is a win win situation!

1. Hackmanite is known to change color by exposure to different forms of light and its color change is known to be tenebrescent. The color of the material at times can be enhanced by storage in a dark place; however, may fade upon exposure to light. This change is repeatable and not permanent. In addition, Hackmanite also produces some wild colors under UV light and is highly sought after by collectors.

2. Hackmanite Facet Rough is a transparent variety of Sodalite that is "tenebrescent" and is extremely rare to come across. Afghanistan has been a steady supplier to mineral enthusiasts for Hackmanite crystals and we have rarely come upon any clean facet grade material.