20.68ct Ethiopian Opal Rough Gem sphere unlike most aquamarine on the

unlike most aquamarine on the market

27ct tanzanite crystal measures 24mm x 19mm x 12mm and has been enhanced by heating

Color: Natural Unheated Tanzanite Crystal w/ White Calcite

but this piece is very fine cutting material that will have a great yield if carved

Weight: 542g

20.68ct Ethiopian Opal Rough Gem sphere unlike most aquamarine on theWelo 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 great 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