Terminated single gem crystal of Chrome Tourmaline which is a chromium and vanadium rich Dravite. Complete all around with deep emerald green coloration and gemmy!! This is one the best I've seen of this all green style from the 'Commander Mine' find in 2016. There is unfortunately part of the crystal missing from the lower back side as seen in the third photo. Regardless, it is a spectacular crystal that would command twice as much or more if perfect, the color and clarity is just that good, and it can be displayed without showing the missing area. Last photo is backlit. Weighs 17.2 grams.

Single, complete Tanzanite crystal. An interesting combination of blue and yellow coloration. Superb quality and highly transparent. Undamaged, natural Tanzanite.