Heliodor - Mineral Specimen Alien and could be used as

and could be used as a stand-alone piece

(This is the black one)

The nickel turns it green

The beauty of the jacob's chuck on a flex shaft is that you don't have to take the whole front housing apart the way you do on a collet system

5cm x 8cm x 4

Heliodor - Mineral Specimen Alien and could be used asMined from: #521 Pocket, Volyn Deposit, Ukraine Description: Ukrainian heliodors are among the oldest precious stones on earth, dating back 1. 8 billion years as is evidenced by scientific studies of their natural structure. Heliodors from the Ukrainian deposit are considered to be standard setting, as the Volyn mine represents the entire colour range (from colourless to green yellow to yellow coloured stones characteristic of this beryl variety.