Item Information

Dimensions (mm) 25 x 15 x 5mm
Weight (carats) 13.5 carats



This     is a doublet made from natural crystal from Coober pedy and mounted on to ironstone to give the look of expensive black opal.Stunning natural bumblebee jasper with a natural red garnet

The workmanship and quality is excellent.

Sterling silver

Stamped 925

Weight of Jasper 13.50 cts app

Size of opal 8 x 7 mm app

Size of jasper 25 x 18 mm app

Amount of silver used gramms 3.67 app

Weight of stones and silver: 36.55 cts app.

Length of pendant 46 mm app

Our       jewelery manafacturingis contracted out to one factory in asia     where i   supply both the silver and stones to be set.This gives me     control of the quality of both the silver and stones.


This stone is the product of hydrothermal deposit at the mouth of a semi annually drowned volcanic vent. Its a mixture of high levels of silica in the form of primarily opal and acidic solutions that dissolve the wall rock of the volcano, as well as percolating sulfur out of the belching still active fumarole, as well as other minerals.  These have been depositing for a few hundred thousand years at this high mountains vent. It is then essentially opalized and silicated sulfur as well.  Mine source adds that as many as 15 other mineral traces color the blend   in the gorgeous plumes you see within these crazy pretty cabs

Jasper, a form of chalcedony,is an opaque, impure variety of silica, usually red, yellow, brown or green in color. Blue is rare. This minerl breaks with a smooth surface, and is used for ornamentation or as a gemstone. It can be highly polished and is used for vases, seals, and at one time for snuff boxes. When the colors are in stripes or bands, it is called striped or banded jasper. Jaspilite is a banded iron formation rock that often has distinctive bands of jasper.Jasper is basically chert which owes its red color to iron inclusions

often contains organic material and   mineral oxides which give it interesting patterns, bands and colors.  Many of these patterns resemble landscapes with mountains and valleys,  thus the name “picture” is part of the name of many well know jaspers.

Jasper was a favorite gem in ancient times and is referenced in Greek, Hebrew, Assyrian and Latin literature.

Found   worldwide, a wide variety of named jaspers is found in the western areas   of the Unites States; California, Oregon, Idaho, Utah, Wyoming and   Washington.

Picture   jasper is a petrified or silicated mud that dripped into gas pockets in   molten lava. It became superheated and then solidified forming the   unusual banded patterns which are typical of this stone.

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Pricing & Details

Auction ID 627492
Watchers 1 watching
Viewed 1,265 times
Starts 13th Dec 2016 8:36pm PST

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Sedaopaljewelery Details

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