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  2. Pennino Brothers Jewelry - Wikipedia

    en.wikipedia.org/wiki/Pennino_Brothers_Jewelry

    Pennino Brothers Jewelry was a United States jeweller founded by Oreste, Frank and Jack Pennino in 1926 and based in New York City. It designed and manufactured costume jewelry using rhinestones set in gold plate, sterling, vermeil or rhodium-plated base metal. Many of these pieces were made by Italian immigrants, such as Adrian Scannavino and ...

  3. Plating - Wikipedia

    en.wikipedia.org/wiki/Plating

    Plating is a finishing process in which a metal is deposited on a surface. Plating has been done for hundreds of years; it is also critical for modern technology. Plating is used to decorate objects, for corrosion inhibition, to improve solderability, to harden, to improve wearability, to reduce friction, to improve paint adhesion, to alter conductivity, to improve IR reflectivity, for ...

  4. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    Other precious metals include the platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum, of which platinum is the most widely traded. [1] The demand for precious metals is driven not only by their practical use but also by their role as investments and a store of value. Historically, precious metals have commanded ...

  5. Rhodium - Wikipedia

    en.wikipedia.org/wiki/Rhodium

    Rhodium is a hard, silvery, durable metal that has a high reflectance. Rhodium metal does not normally form an oxide, even when heated. [25] Oxygen is absorbed from the atmosphere only at the melting point of rhodium, but is released on solidification. [26] Rhodium has both a higher melting point and lower density than platinum.

  6. Electroplating - Wikipedia

    en.wikipedia.org/wiki/Electroplating

    Brush electroplating has several advantages over tank plating, including portability, the ability to plate items that for some reason cannot be tank plated (one application was the plating of portions of very large decorative support columns in a building restoration), low or no masking requirements, and comparatively low plating solution ...

  7. Jewelry District (Providence) - Wikipedia

    en.wikipedia.org/wiki/Jewelry_District_(Providence)

    The Jewelry District is a neighborhood of Providence, Rhode Island located just southeast of Downtown. The historical path of Interstate 195 delineates the neighborhood's northern border while Interstate 95 and the Providence River define its western, southern and eastern edges.

  8. Gold plating - Wikipedia

    en.wikipedia.org/wiki/Gold_plating

    Gold plating is often used in electronics, to provide a corrosion-resistant electrically conductive layer on copper, typically in electrical connectors and printed circuit boards. With direct gold-on-copper plating, the copper atoms tend to diffuse through the gold layer, causing tarnishing of its surface and formation of an oxide and/or ...

  9. Jewellery store - Wikipedia

    en.wikipedia.org/wiki/Jewellery_store

    A jewellery store (American English: jewelry store [1]) is a retail business establishment, that specializes in selling (and also buying) jewellery and watches. Jewellery stores provide many services such as repairs, remodeling, restoring, designing and manufacturing pieces.

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