There is a a selection 'Alumnium' textures in the Bryce materials drop-down, in the METALS section. lines 7 & 8. There are several colours o choose from but you can change these easily enough..

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All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...