Item Information

Dimensions (mm) 24 x 23 x 4mm
Weight (carats) 16.22 carats


This is natural untreated opal mined in Honduras. It is formed in areas of volcanic ash so the back has black ash as a base.Full faced stones are hard to come by with most of the material matrix.Interesting verticle lines run across the stone. It is considered a black opal as the body tone is N3/4


Weigh 16.22 cts app

Size 24.65 x 23.20 x 4 mm app

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.

6h 21m 2s

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Pricing & Details

Bid Increment $1.00
Starting Bid $4,200.00
Auction ID 322857
Watchers 8 watching
Viewed 6,518 times
Starts 22nd May 2017 10:03pm PDT
Ends 23rd May 2017 10:00pm PDT

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