|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
This is a parcel of specimen of natural rough specimen pieces of matrix from the Opalton opal field in Queensland.The precious opal is embedded in the boulder rock which was a former worm burrow replaced with with opal. They will cut colourful stones or kept as a specimen.
Weight of parcel 26.85 cts app
Size of largest piece 21.9 x 14 x 4.1 mm app
We have taken a picture of the rough wet.
Matrix opal is where the opal occurs as a network of veins or infilling of voids or between grains of the host rock .Matrix comprises precious opaline silica as an infilling of pore spaces in silty claystone or ironstone.
Hello Friends, all at best! Nice sandstone boulder, good condition. Looks like burned wood, like it. Best wishes from Munich/Bavaria/Germany! Walter
|Starts||21st Nov 2010 5:17pm PST|
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