Almite is an interesting and elusive beast; so far as I can tell it isn't a specific process, but rather a fancy name for anodizing.
"Alumilite" is a specific, trademarked anodizing process developed by Alcoa, but that's not what you usually see listed. In the rest of the world, "Alumite" seems to have become a popular way to describe anodization in various forms, and Almite seems to be yet another permutation of the term.
That's not to say you can just strip the coating off and anodize/dye/seal the scales any old way to get the same effect. There's some specific process that Spyderco/the shops in Japan used.
FWIW, my Cricket has a rich, dark matt grey, while my Civilian has a lighter, slightly more reflective grey. Not all Spyderco Almite is the same, just as not all carbon fiber is the same. The process is surely repeatable by someone who knows the tricks used, but when coatings like Cerakote are widely available I think that's probably the way I'd go.