Kammala jumla mai zuwa: An gano ma'adinan azurfa na kansu a Rasha ne kawai a karni na 18, saboda haka tattalin arzikin kuɗin ƙasar ya dogara ne akan kwararar wannan ƙarfe, da farko a cikin tsabar kuɗi, daga ƙasashen waje. A cikin karni na 12, wannan kwararar ta fara raguwa daga yammacin shugabanci (watakila saboda karfafa umarnin knight na Jamus a cikin Baltic States da farkon tashin hankali na yau da kullun tsakanin su da masarautun yamma; duba labarin <unk>Ostsiedlung<unk>), kuma a cikin karni na 13 daga gabas (watakila, wannan ya haifar da
Tatar-Mongol mamayewa).