Assay

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ASSAY. A chemical examination of metals, by which the quantity of valuable or precious metal contained in any mineral or metallic mixture is ascertained. 2. By the acts of Congress of March 3, 1823, 3 Story's L. U. S. 1924; of June 25, 1834, 4 Shars. cont. Story's L. U. S. 2373; and of June 28, 1834, Id. 2377, it is made the duty of the secretary of the treasury to cause assays to be made at the mint of the United States, of certain coins made current by the said acts, and to make report of the result thereof to congress.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Theodore Lowe talked a Denver assayer into analyzing it, and it turned out to be gold ore worth $200 per ton (nearly 10 troy ounces of gold per ton--good enough to cause a stampede in most places!).
Merely remodeling a cramped assayer's office took until April 3, 1854, and the branch mint's operations were slow and careful thereafter.
On the other hand, his other favorite example of a distinct idea, the one that assayers have of gold is, of course, not the kind of idea that we would regard as commonplace.
Locally made bricks used in an assayer's furnace built by Gans have been found on Roanoke.
Deborah McKenna of Alex Stewart (Assayers) Ltd emphasises that the possibilities of contamination should never be underestimated.
Occasional assayers' marks were removed from small or damaged plate to be soldered onto a larger piece.
Born in New York City, Ledoux made his living as head of the firm of Ledoux & Co., chemists and assayers. But his pleasure was in writing poetry, meeting poets, writing criticism, and collecting manuscripts and Japanese prints.
The growing technical complexity, of mining generated a new technical staff of two civil engineers and three assayers. The company's medical staff also increased from one to four men during these years.
Private equity deals completed by the team include the management buyout of Knowsley-based Alex Stewart Assayers in a deal backed by Close Brothers Private Equity.
A FOUR goal haul from Williams helped reigning Alex Stewart Assayers I-Zingari Premier League Champions Old Xaverians to an 8-0 rout of Division One champions Nalgo.