Does "Carbon & Aluminium" really mean cheap plastic coated aluminium? I'm looking to replace the suspension fork on my MTB (which has blown a seal) with a rigid fork now that I'm exclusively commuting in the city. During my research I came across the
MOSSO 26" MTB Carbon &amp; Aluminium Rigid Straight Fork on eBay, one of the cheapest "carbon" forks in this category at only 80 bucks.

What's the catch? Which parts are are aluminium vs carbon? How do they compare with pure carbon or pure aluminium? Is this just a gimmick to make aluminium forks look cool by coating them in purely cosmetic textured plastic?
No, in this case it means that the steerer tube is alloy, but the fork blades are carbon fiber. About the only products where you may see a layer of carbon over an aluminum core are stems, which is usually to make a cheap stem to match a good quality carbon handlebar.