Copper Alloy

Copper alloys are metal alloys that have copper as their principal compoenet.  They have high resistance against corosion.  Bronze is created when tin is added, Brass is created when zinc is added.  It is almost impossible to separate the different alloys based on appearance alone.  Chemical testing is needed to distinguish these separate alloys.  

Objects: Copper Alloy Export: JSON - XML - CSV Clay Seals and Sealings

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Object	U Number	Museum Number (UPM Date Reg Number)	Museum Number (BM Registration Number)	Museum Number (UPM B-number)	Description (Catalog Card)
	16117	31-43-66	(none)	(none)	Stamp seal. Mauve chalcedony(?) Concial-suspended by copper wire. Roughly engraved with figure of a man. [drawing]
	16198A	31-43-213	(none)	(none)	[A-B] 2 bronze [bronze is struck through and silver written next to it] finger rings. (A) one with circular bezel. Phil.
	16262	31-43-37	(none)	(none)	Cylinder seal. Dark steatite. Presentation scene with standing god and three other figures.
	17044A	31-43-216	(none)	(none)	[A-D] 4 signet rings. [A-C] 3 plain finger rings [of] copper and [D] 1 plain silver ring. Signet rings have circular bezels.
	17044B	31-43-218	(none)	(none)	[A-D] 4 signet rings. [A-C] 3 plain finger rings [of] copper and [D] 1 plain silver ring. Signet rings have circular bezels.
	17044C	31-43-219	(none)	(none)	[A-D] 4 signet rings. [A-C] 3 plain finger rings [of] copper and [D] 1 plain silver ring. Signet rings have circular bezels.
	17044D	31-43-215	(none)	(none)	[A-D] 4 signet rings. [A-C] 3 plain finger rings [of] copper and [D] 1 plain silver ring. Signet rings have circular bezels.
	17044F	31-43-220	(none)	(none)	[A-D] 4 signet rings. [A-C] 3 plain finger rings [of] copper and [D] 1 plain silver ring. Signet rings have circular bezels.
	17626A	32-40-437, 32-40-437	(none)	(none)	[A-B] Copper cylinders. A pair. Solid metal, entirely carved with inscription in vertical lines. Name of NUR-ADAD.
	18285	33-35-80	(none)	(none)	Signet ring. Copper. With oval bezel on which an engraved design, (corroded).
	18919	35-1-22, 35-1-22	(none)	(none)	Cylinder seal. Green steatite (?) with copper caps. Two standing gods shaking hands: two men killing a kneeling prisoner: two columns of inscription supported by an animal. Good work.

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Electrum - Gold - Iron - Lead - Silver

Bronze - Copper