Love the color
|Dimensions (mm)||29 x 25 x 5mm|
|Weight (carats)||19 carats|
HONDURAN MATRIX ROUGH OPAL
This is natural UNTREATED rough opal mined in Honduras. It is formed in areas of volcanic ash.
Weigh 18.70 cts app
Size 29 x 25 x 5 mm app
The photo is taken of the rough wet
Honduras has hundreds of opal prospects and mines, although most high- quality opal is produced from small informal mines in the cool tropical highlands of southwestern Honduras. In particular, the Tablon mine near Erandique is based on the country’s biggest deposit where the opal occurs in large blocks of black basalt. Miners hand-chisel the boulders to extract small vertical veinlets of thin, colourful precious opal, including black-seam opals and black-matrix opals. Seam opals, varying from near paper-thin to rare specimens more than 1 cm thick, have a crystal clear, milky white, slightly blue or brownish orange colouration because they are so thin, the gems tend to be cut with the black basalt forming the back of the stone forming black-matrix opals.
|Starts||3rd Mar 2011 7:54pm PST|
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