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In addition to its use in jewelry, amulets, inlays, and architectural decoration, glass was used for vessels, particularly distinctively shaped perfume bottles. The two most common shapes take their names from Greek pottery: "amphoriskoi" (little amphoras) and "krateriskoi" (little kraters). This vessel is an example of the former, with its broad shoulders, rounded base, and opaque white ground. It is a core-formed vessel; the technology of blown glass was as of yet unknown. The molten mass, composed of silica and natron (heated to a temperature of around 1000°-1150° C) was wrapped around a clay or dung core that was later removed. Decorative bands were formed by pressing threads of colored glass onto the molten surface; combing the threads with a metal tool created decorative patterns.