GemologyOnline.com • View topic - what is rhodium plated silver?
网页2011年1月17日 · Firstly, to plate rhodium onto silver, one has three options. 1 First copper, then nickle then rhodium. 2 First palladium, then rhodium. 3 Rhodium straight onto silver. The first two are done in that manner because the rhodium solution is sensitive to copper and will loose its bright plating ability if it is contaminated by base metals.
Safe to rhodium-plate a ring pink tourmaline ring? - Gemology …
网页2013年11月11日 · rhodium plating process doesn't involve too much heat,the liquid in ultrasonic cleaner is heated but its kind of warm rather then hot. rhodium solution remains between 30-55 degree Celsius while plating,rhodium solution's temperature depends on local weather temperature, size of jewellery which has to be plated etc,i guess all those …
Rhodium Plating on sterling silver? - GemologyOnline.com
网页2009年11月23日 · September 28-29—LUBBOCK, TEXAS: Show and sale; Lubbock Gem and Mineral Society; Lubbock Memorial Civic Center
Question as to PD Stamping on Ring... (I am a newbie).
网页2012年3月15日 · Palladium is used as a lower cost alternative to rhodium plating. It’s not as tarnish resistant as platinum or rhodium, but palladium does resist discoloring and is quite stable under most conditions. Used mostly over sterling silver and gold items, palladium can also be plated onto several other metals (steel, bronze, brass).
GemologyOnline.com • View topic - Palladium questions
网页2009年12月13日 · Just a guess, but it is possible that the ring you got from the ebay seller was rhodium-plated. Natural palladium is a grayish color, but I have seen some jewelers rhodium plate various alloys of palladium to give it a similar bright white appearance to white gold (which is also rhodium plated) and platinum.
GemologyOnline.com • View topic - ALERT: Testing platinum
网页2013年10月27日 · It has failed every test for sterling silver---so it is definitely not that, nor is it rhodium plated over sterling, as I have rubbed a considerable corner of the metal on the stone for testing repeatedly with all these different acids, so the inner metal (if it were rhodium plated sterling) should have showed positive using the sterling acid ...
GemologyOnline.com • View topic - ALERT: Testing platinum
网页2010年7月14日 · Steel is magnetic. Platinum is NOT magnetic. If something tests as plat (like a bracelet) and you're just getting a weird feeling (perhaps even if you're getting no feeling at all), bring out your trusty strong magnet. WARNING: a magnet can destroy a watch movement. Movements MUST be removed BEFORE testing with a magnet.
GemWise: The Jewelry Repair Game - GemologyOnline.com
网页2008年5月25日 · September 28-29—LUBBOCK, TEXAS: Show and sale; Lubbock Gem and Mineral Society; Lubbock Memorial Civic Center
Blk Rhodium plating Ice Blue Topaz & Druse (CobaltanCalcite)
网页2015年9月25日 · June 1-2—SAN FRANCISCO, CALIFORNIA: Show and sale; Pacific Crystal Guild; San Francisco County Fair Building
网页Rhodium Plate (Bright White) Rhodium Plate (Gun Metal) Metal Tested: Visual Identification Visual Identification - Stamped Yes - Electronic Tester Yes - Standard Acid Test Yes - Laser Yes No Manufacturing Methods: Cast Cast – Mass Production (Light Weight Mounting) Cast – Mass Production (Medium Weight Mounting) Cast – Mass Production