|Dimensions (mm)||33 x 24 x 7mm|
|Weight (carats)||67.9 carats|
MINERAL GEM WORLD
FIRE AGATE STONES
These are natural untreated polished stones of a fire agate.It has been left on its host rock and it is great as a collectors piece.
If you are interested in a rough fire agate stone visit our sister site QUALITY ROUGH
These stones were mined in Mexico but it is found in Arizona also.The stone appears to glow inside like opal.The gem is thought to be formed when hot water saturated with silica and lava oxide invade cavities in the rock and cool.Chalcendony with iron oxide begin to grow on the surface.The iron oxide gives the basic brown colour to the stone.It grows layers of silica and iron oxide. These alternating silica and iron oxide cause the brilliantfire from the stone.After the iron oxide ran out of the specimen colourless chalcedony continuedto grow over it.
|Starts||16th Dec 2016 6:55pm PST|
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