Sorry if this has been asked before, but I couldn't find the answer. Does anyone in here know what the main original coatings on X-metals are? Polished is easy. Carbon looks like paint/anodization.. The 2 most intriguing ones are plasma and X-metal. Is X-metal just porous Ti alloy, i.e. base metal made somewhat porous to look matte? What's plasma? Anodization? I'm really curious.