White Gold / Platinum Group Metals
By: Peter Roberts
Sometimes this is called white gold. Platinum is not just one metal, however - which (to me at least) still strikes me as strange.
Platinum Group Metaks
The Platinum Group Metals (abbreviated PGM) are the precious metals platinum, iridium, palladium, ruthenium, rhodium, and osmium.
PLATINUM GROUP METALS - (PGMs) refers to six metallic elements clustered together in the periodic table. These elements are all transition metals, and include ruthenium, rhodium, palladium, osmium, iridium, and platinum.
PLATINUM GROUP A category of five noble metals including Platinum, Palladium, Iridium, Rhodium, and Ruthenium ...
Platinum Group: The six metallic elements, platinum, palladium, iridium, osmium, rhodium and ruthenium.
Pliers: Two crossed metal limbs, hinged near their extremities, these forming jaws to grasp objects, bend or cut wire.
The platinum group metals collectively and in any combination of palladium, platinum, rhodium, ruthenium, osmium, and iridium. Reference to PGM grades for the Company's operations include measured quantities of palladium and platinum only.
A metal in the platinum group most often used in plating to give a uniform color or to prevent tarnish
Rhodolite
A purplish-red species in the garnet group ...
A member of the Platinum group, Palladium is lighter and less expensive than platinum and is mixed with yellow gold to create white gold.
Parure ...
A member of the platinum group, rhodium is a shiny white metal that is highly reflective, durable, and expensive--much more expensive than even platinum. Rhodium is often used as a hardening agent for platinum.
Palladium:A naturally white, durable, metallic element that is part of the platinum group. Palladium has a natural silvery luster, lightness, and strength, and is a wonderful alternative to more pricey platinum jewelry.
Jewelry containing at least 50 percent pure platinum and at least 95 percent platinum group metals (platinum, palladium, iridium, osmium, rhodium and ruthenium) is marked with the platinum content followed by the content of the other metal.
Specks of platinum group metals occur in ancient Egyptian gold work as a 'contamination'.
Platinum belongs to Platinum Group of Metals, or PGM.
PGM again consists of six related metals including Platinum, Iridium, Palladium, Ruthenium, Rhodium and Osmium. Now all these metals belonging to PGM family have very high melting point.
Platinum (Pt), palladium (Pd), iridium (Ir), and osmium (Os) number among the less common metallic native elements and are classified as the platinum group.
White gold: White gold can be alloyed white (i.e., pure gold is yellow) with silver, palladium (a precious platinum group metal) or nickel. Most white gold jewelry is also rhodium plated.
The noble metals would include: gold, silver, and the platinum group (aka: "platinum group metals," or "PGMs") which includes platinum, palladium, rhodium, iridium, osmium, and ruthenium.
iridium - a hard white metallic element of the platinum group, the most corrosion-resistant and one of the densest elements known. In the massive form it is unaffected by acids, including aqua regia.
Palladium is one of the platinum group metals. Palladium is used as a substitute for platinum or white gold. Palladium has a lovely silvery-white color so it does not require rhodium plating, and it is harder and less expensive than gold or platinum.
Palladium - A member of the Platinum group, palladium is naturally white and extremely durable. It is lighter than platinum, whiter than white gold, and hypo allergenic as well has being significantly less expensive then platinum.
Six slightly different metals belong to the Platinum Group of Metals (PGM): platinum, iridium, palladium, ruthenium, rhodium and osmium.
A white precious metal belonging to the platinum group, it weighs a little more than half as much as platinum and sells for half the price
Pampilles
A cascade of pendant stones; popular in Georgian jewelry and meant to look like rain drops ...
If a piece of platinum jewelry is marked "iridplat," then it generally contains 90% platinum and 10% iridium, a platinum group metal. If it is marked "plat," then it is at least 95% platinum and another platinum group metal, most likely ruthenium.
Palladium:
Part of the platinum group of metals, palladium has a silvery white color but is less rare and therefore less treasured than platinum.
Rhodium
A shiny platinum group metal that increases whiteness and strength of other metals. A rhodium finish also helps to prevent tarnishing.
Palladium: A rare metal of the platinum group, with similar properties but lighter in weight than platinum. Most often alloyed with silver or gold when used in jewellery.
Rhodium: A metal of the platinum group. Frequently used to plate silver to prevent tarnish, or to plate white gold to resemble platinum.
A white metallic element of the platinum group that is harder, whiter, and more reflective than platinum. It is widely used for plating.
Scintillation: ...
Over the next fifteen years, various chemists discovered palladium, rhodium and iridium, which are part of the platinum group of metals and are frequently utilised in platinum alloys that are used in jewellery.
Rhodium is a highly reflective silvery precious metal, one of the platinum group of metals, often used to plate over "white" gold alloys to enhance their whiteness, in and around diamond settings. Not usually needed on platinum.
Precious Metals - Metal of great value being gold, silver, platinum and other platinum group metals.
The category of white metals includes pure silver, silver alloys, white golds, platinum, platinum group metals and their alloys; white non-precious metals such as tin, lead or cadmium and their alloys.
1 These guides also apply to articles, including optical frames, pens and pencils, flatware, and hollowware, fabricated from precious metals (gold, silver and platinum group metals), precious metal alloys, and their imitations.
In the US and abroad, there is an increased interest in platinum jewelry, with wedding and engagement rings being the strongest selling category. The platinum group of metals (PGM), is comprised of six closely related metals: Platinum, Palladium, ...
Platinum alloys must consist of 50% pure platinum content (950) and 50% of at least 950 purity platinum group metals (iridium, osmium, palladium, rhodium and ruthenium). Uses of Platinum ...
Precious MetalsGold, silver, and the platinum group metals are known as the precious metals. Some craftsmen also call them the noble metals.
and cultured pearls Paillons Small pieces of metallic foil which are placed underneath enamel work to provide a glow, popular with a number of Arts and Crafts movement jewelers Palladium A white precious metal belonging to the platinum group, ...
 See also: Group, Metal, Platinum, Jewel, Gold
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