Seam Agates Explained
Автор: David Briggs
Загружено: 2022-07-23
Просмотров: 2055
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In this video explainer, I explain how seam agates are formed. I also speak on how different types of agates are formed in circumstances similar to pure seam agate examples.
Banding structure only exists in Agate and Onyx due to the specific circumstances of their formation. In essence, the only difference is opacity. It is generally accepted science that elemental intrusion of silica rich fluid dictates the color of the band in agate, or chalcedony nodule.
In onyx, those bands are expressed as nearly opaque.
The glowing effect of agate is observed when light is absorbed at different wavelengths causing a "glow" as light travels through the stone at different rates based on the depths of color and opacity. This effect may me increased with polish, or liquid saturation of the surface of the stone.
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