Are there colorful metals besides gold and copper?

Are there yellow metals besides gold? Are there metals with color different than yellow and grey/silver or reddish?




Osmium has a bluish-gray tint.  

[Well; slightly.](https://en.wikipedia.org/wiki/Osmium#Physical_properties)  

Cesium is silvery-golden!,  

[But don't wear it.](https://en.wikipedia.org/wiki/Caesium)


 22

There is no *element* other than gold and copper with similar colors; see <http://periodictable.com/Properties/A/Color.html>. 


There are many metal *alloys* that are red and golden, such as phosphor bronze, which can have a golden hue. 


In addition, some *metallic compounds* may be shiny yellow. Freshly sliced potassium is silvery, but soon acquires an oxide/nitride coat that may look yellow (perhaps due to interference of light?). Of course, "fool's gold", FeS2, was often confused with the element. See <http://en.wikipedia.org/wiki/Pyrite> and [Image of pyrite crystal](http://www.mindat.org/arphotos/371h319-0205976001300052845.jpg).


 13

The color of nanoparticles in solution depends on size, so one can create the whole rainbow of colors using a single elemental composition. 


See e.g. <http://nanocomposix.com/pages/plasmonics> for details. 


<https://en.m.wikipedia.org/wiki/Colloidal_gold> shows gold being red and purple. 


 7

[Strontium](https://de.wikipedia.org/wiki/Strontium) seems to be golden too, if of high purity. Look under "Eigenschaften". Beside that, also caesium seems to be of golden color.


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