Editing Onyx (material)
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Onyx is usually cut as a cabochon, or into beads, and is also used for intaglios and cameos, where the bands make the image contrast with the ground. Some onyx is natural but the staining of agate produces much. | Onyx is usually cut as a cabochon, or into beads, and is also used for intaglios and cameos, where the bands make the image contrast with the ground. Some onyx is natural but the staining of agate produces much. | ||
The name has sometimes been used, incorrectly, to label other banded lapidary materials, such as banded calcite found in Mexico, [[Pakistan]], and other places, and often carved, polished and sold. This material is much softer than true onyx, and much more readily available. The majority of carved items sold as 'Onyx' today are this carbonate material. | The name has sometimes been used, incorrectly, to label other banded lapidary materials, such as banded calcite found in [[Mexico]], [[Pakistan]], and other places, and often carved, polished and sold. This material is much softer than true onyx, and much more readily available. The majority of carved items sold as 'Onyx' today are this carbonate material. | ||
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