31ct Rough Dark Base Opal from Ethiopia Apophyllite Weight: 266g

Weight: 266g

which is pretty unusual

You can see in the photo the daylight fluorescence outside (deep blue towards the outer edges of the fluorite crystals) and in normal indoor lighting it is a deep greyish green

which is quite clean internally (could be faceted) and deeply saturated

because it doesn't have the typical blue/violet color which we consider tanzanite

31ct Rough Dark Base Opal from Ethiopia Apophyllite Weight: 266gWelo 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