Gold, Platinum, Palladium, Silver - How to Test, Select, Care for Them



A full-colour guide for lay people and professionals about gold, platinum, palladium, silver, copper, bronze, brass, iron, titanium, niobium, aluminium, stainless steel, Damascus steel, tungsten carbide and cobalt chrome. This book explains how to test, buy, sell, and care for jewellery with precious and alternative metals. High-quality colour photographs show how these metals are creatively used in jewellery. Besides providing an historical perspective and interesting facts about the metals, this book discusses jewellery manufacturing methods, plating and responsible mining & business practices. You will learn: How to read the stamps on jewellery mountings; How to identify jewellery metals; How to determine the gold content in jewellery; How and where to sell your unwanted jewellery; How to spot a fair consignment contract; How to select refiners and prepare shipments to them; How to prevent and remove silver tarnish; How to clean metal jewellery.

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Neodymium Pocket Key ring Gold - Silver Jewelry Test Magnet



We have mounted a very powerful 3/8" diameter x 3/8" diameter cylinder N52 grade neodymium-iron-boron rare-earth magnet in brass for industrial and hobby use. It comes with a split ring for easy carrying, and comes with a protective vinyl cap. The magnet insert is rated at 10 lbs (as with all magnets, this rating depends on the magnet mating to a smooth, flat, unpainted steel surface). These 10 lb magnets have an excellent feel and are very sensitive. The perfect size and strength for identifying fake silver & gold jewelry! Please note: Due to their strength they all have the potential to damage credit cards or other items with a magnetic strip if they are kept too close, but cell phones and electronics are fine. The brass casing protects the magnet from chipping and breaking, and makes removing iron and steel shavings much easier. Proudly made in the USA! Dimensions are: 1/2" (12.5mm) diameter x 3/4" (19mm) tall head, 1-7/8" (48mm) overall length, 3/8" (9.5mm) diameter handle, 1/2" (12.5mm) diameter stainless steel split ring.

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