Here is a theory I am going to examine with regards to observations. Ram sticks may have more or less gold fingers, shorter longer etc, but the size of the gold fingers appear to me very uniform and consistent across the board regardless of brand and type. Laptop ram fingers are a size apart from desktop, but within those categories the little tiles are the same size. If someone uses the aqua regia method to do a count on how many fingers of those things will weigh out per gram. then people can count the gold value on their ram by how many of those fingers are on there.

Its a step. What acid is it to use to separate those gold fingers from the ram??