Price is for ONE piece

Specification:

Material: Osmium Os Metal

Size: Irregular Bead

Purity: Os ≥ 99.95 %

Weight: approx. 0.5 g (Range from 0.45 to 0.55g)

Usage: Education Gifts, Science, Professional Exhibits, Eternal Collection, etc.

Quantity: 1 piece

Feature:

It's a wonderful collection for chemical elements and natural sciences lover.

We made this in cutting edge national level laboratory with rigorous process and restrictive standard.

This item is not only for retail selling but bulk order is very welcome as well.

For more high purity element cube, welcome to visit our store on eBay via,

https://www.ebay.com.hk/str/hugohk/Chemical-Element/_i.html?_storecat=32591958018

Osmium (from Greek ὀσμή osme, "smell") is a chemical element with symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.59 g/cm3. Manufacturers use its alloys with platinum, iridium, and other platinum-group metals to make fountain pen nib tipping, electrical contacts, and in other applications that require extreme durability and hardness. The element's abundance in the Earth's crust is among the rarest.

Osmium is a kind of precious noble metal, which is also the lowest content stable element in the earth's crust. It is rarer than Iridium. Over the world annual output is less than a ton, which is very rare, and the metal Osmium is basically sold in powder state. Metallurgy approach to melt the powder in block is very rare to find, yet the final product’s density is hardly could reach the theoretical density. It is the most dense element in nature, with a density of up to 22.59 g/cm³ and extreme high melting point of 3045 °C. Osmium is usually found in nature in the form of pure metals or alloys, which are produced in the form of by-products of the copper and nickel mining and refining processes. The Osmium powder is grayish blue, and in block format is light blue due to the formation of blue Osmium dioxide Polymer on the surface. The pure Osmium metal is hard but brittle and easily to be broken into powder.

Original raw material itself is very scarce in sources of mining. Furthermore, melting Osmium is very difficult. Thus, the Osmium in high density beads is extreme rare to obtain.

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