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Osmium: Densest Precious Metal
Osmium is an extremely hard, brittle, bluish white or gray transition metal in the platinum group metals. It is the densest natural element, being about 0.03 g/cm3 denser than iridium (the second densest natural element) and about twice as dense as lead. Among the platinum family members, osmium has the highest melting point and the lowest vapor pressure.
Palladium And Platinum As Investment Commodities
Palladium and platinum are two of nine metallic chemical elements considered "precious" for their rarity and high economic value. Like all the other precious metals, palladium and platinum have various industrial uses. But apart from these, both are also regarded as investment commodities.
The Six Precious Metals Of The Platinum Group
In the periodic table of elements, six metallic elements are bunched together in the d-block, specifically in groups 8 to 9, periods 5 and 6. All transition metals, these six elements are collectively referred to as the "platinum group metals". These precious metals tend to occur with one another in mineral deposits. Likewise, they are alike in both chemical and physical properties.