10 x 10 x 10mm Metal Osmium Cube Periodic Table Of Elements Cube(Os ge;99.95%) Features: .Metal osmium cube with a purity of 99.95% .The universal size 10 x 10 x 10mm, the product is made by 9995 osmium powder high temperature sintering, density can reach more than 21, and then through wire cutting, grinding, hand grinding made, has a unique blue, impressive feel, and high cost performance, it is ideal for element lovers and metal lovers collections to fill your collection .The surface is polished, edges and corners are polished thoroughly, not easy to scratch, with exquisite lettering, including periodic number, atomic density, weight, purity, full name and narrowing information, which is extremely suitable for collecting, teaching and playing .Osmium is a heavy platinum group precious metal, as well as the stability of the lowest levels in the crust elements, more rare than iridium, annual output is lower than a ton in the world, and is very rare, and osmium metal basically sold at state of powder, powder metallurgy osmium block has been quite get less, and melting get close to the theoretical density of osmium are much rarer.Osmium is the densest in nature, the density up to 22.59 g/cm3, melting point is very high, up to 3045℃.Osmium in nature is usually in the form of pure metal or alloy, and osmium is basically copper and nickel mining and extraction process of the by-product form.Osmium powder is grayish blue, osmium block because of the formation of blue surface osmium dioxide and light blue.Powder state of osmium at room temperature can be oxidized into volatile and highly toxic osmium tetroxide, osmium of the compact state at room temperature stability, and when heated the osmium of the compact state will be oxidized into osmium tetroxide, so osmium smelting has a certain risk.Osmium is hard and brittle, easily broken into powder .The product is suitable for people over 8 years old Specifications: .Color: As Shown .Material: Osmium .Product Dimensions: 1 x 1 x 1cm .Product Weight: 21g .Package Dimensions: 2 x 2 x 2cm .Package Weight: 50g .Packing: Bag Package Content: .1 x Cube