[aeacfm]

oil field scale sample contain hydrocarbon material , the other component of this scale supposed to be iron sulfide   , iron carbonate , calcium carbonate , Zinc sulfide , lead sulfide   , iron oxide  sodium chloride , sand
 
i can determine the following :

Hydrocarbons , Chlorides  , sand
but the problem is that  how can i determine the rest of the components in % wt ?
other question is how can i determine or differentiate between iron carbonate and calcium carbonate in the same sample ?

[aeacfm]

isnt there any body who can help me about that?