Last Updated：2025/11/20
The antiquarian explained that jasper, once used by gem collectors to mean any bright-colored variety of chalcedony other than carnelian, appeared frequently in medieval inventories.
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The antiquarian explained that jasper, once used by gem collectors to mean any bright-colored variety of chalcedony other than carnelian, appeared frequently in medieval inventories.
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その骨董品収集家は、かつてそれがカーネリアン以外の鮮やかな色のカルセドニーの一種を意味し、中世の目録に頻繁に登場していたと説明した。
