|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
This is a natural agate from brazil showing fern-like dendrites made of manganese/iron silicates trapped inside the crystalline structure of the white -colored opal agate, making this an intriquing and unique gemstone. They form as nodules.The dendritic inclusions, and are shaped like trees with some very interesting patterns.
well cut and polished
Weight 19.75 cts app
Size 26 x 17 mm app
Agate is a microcrystalline variety of quartz (silica), chiefly chalcedony, characterised by its fineness of grain and brightness of color. Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocks.
Colorful agates and other chalcedonies were obtained over 3,000 years ago from the Achates River, now called Dirillo, in Sicily.
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