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  2. Silver standards - Wikipedia

    en.wikipedia.org/wiki/Silver_standards

    The Scandinavian silver alloy contains 83% pure silver and 17% copper or other metals. [10] German silver will be marked with a millesimal fineness of 800 or 835 (80% or 83.5% pure silver). Any items simply marked "German silver", "nickel silver" or "Alpaca" have no silver content at all, but are mere alloys of other base metals. [citation needed]

  3. Metallurgical assay - Wikipedia

    en.wikipedia.org/wiki/Metallurgical_assay

    A coin assayer is often assigned to each mint or assay office to determine and assure that all coins produced at the mint have the correct content or purity of each metal specified, usually by law, to be contained in them. This was particularly important when gold and silver coins were produced for circulation and used in daily commerce. Few ...

  4. Touchstone (assaying tool) - Wikipedia

    en.wikipedia.org/wiki/Touchstone_(assaying_tool)

    The touchstone allowed anyone to easily and quickly determine the purity of a metal sample. This, in turn, led to the widespread adoption of gold as a standard of exchange. Although mixing gold with less expensive materials was common in coinage, using a touchstone one could easily determine the quantity of gold in the coin, and thereby ...

  5. Fineness - Wikipedia

    en.wikipedia.org/wiki/Fineness

    Millesimal fineness is a system of denoting the purity of platinum, gold and silver alloys by parts per thousand of pure metal by mass in the alloy. For example, an alloy containing 75% gold is denoted as "750".

  6. Researchers find new way to extract high-purity silver from ...

    www.aol.com/researchers-way-extract-high-purity...

    The process retrieves more than 90% of the silver and aluminium in 10 minutes, experts suggest. Researchers find new way to extract high-purity silver from used solar panels Skip to main content

  7. Silver hallmarks - Wikipedia

    en.wikipedia.org/wiki/Silver_hallmarks

    A silver object that is to be sold commercially is, in most countries, stamped with one or more silver hallmarks indicating the purity of the silver, the mark of the manufacturer or silversmith, and other (optional) markings to indicate the date of manufacture and additional information about the piece.

  8. How To Buy Silver: 5 Ways To Invest - AOL

    www.aol.com/finance/10-best-places-buy-silver...

    Long before ETFs, derivatives and options trading, precious metals like gold and silver emerged as the oldest investment vehicles in history. See: 3 Things You Must Do When Your Savings Reach...

  9. Titer - Wikipedia

    en.wikipedia.org/wiki/Titer

    Titer has the same origin as the word "title", from the French word titre, meaning "title" but referring to the documented purity of a substance, often gold or silver. This comes from the Latin word titulus , also meaning "title".