4.10gram Darker Base Welo Opal min Measurement: 17mm x 9mm x

Measurement: 17mm x 9mm x 3

This beautiful Tanzanite Crystal has a natural deep purple/blue color and good looking crystal structure

5mm x  30

Measurement: 29mm x 16mm x 10mm

and greens and blues in this piece

4.10gram Darker Base Welo Opal min Measurement: 17mm x 9mm xWelo Ethiopian hydrophane opal mineral specimen with an amazing play of color. Not only that, but this piece is very fine cutting material that will have a good yield. Watch Video to see the play of color and full view of this opal. We recommend that this opal material NOT be submerged in water (unless it is being cut, water will keep it cool), and it should never have any oils applied to it. Also, due to the hydrophane nature of this opal, the weight