Tungsten can be engraved. Hardness is measured on the MOHs hardness scale. This is a scale from 1 - 10 where 1 is the softest and 10 is the hardest. A diamond registers as a 10 on the MOHs hardness...
A laser engraving shop can engrave just about any material. From wood to leather to stone to stainless steel, they have the ability to either engrave some materials with an actual etching into the...
