16.43ct Rough Opal from welo Ethiopia Fluorescent These fossil ammolites are around

These fossil ammolites are around 70 million years old & these particular ammonites are among the few sources that produces such spectacular brightly colored specimens and gem quality pieces

A very nice crystal

the window's color shifts to a vivid yellow-orange

Measurement: 55mm x 41mm x 25mm

It has a very distinct saturation of amethyst and the citrine can be seen best when back lit or in the right lighting conditions

16.43ct Rough Opal from welo Ethiopia Fluorescent These fossil ammolites are aroundWelo 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