<prompt> Qedela umusho olandelayo: Umbono wokuqala wempahla-imali wasungulwa uV. L. Yanin. Usosayensi wathi indima yemali yokukhokha okuncane ingafezwa yimikhiqizo ethile efanayo futhi esakazeke kakhulu eRussia Yasendulo - njengobuhlalu be-crystal ne-cornelian, ngokuvamile obuphawulwe ezinqolobaneni zemali, izibambo zengilazi ezinemibala ehlukahlukene, kanye ne-ovruch slate spindle whorls. Lezi zinsimbi zazitholakala ngokuphindaphindiwe ziqoqwe kanye nezinsimbi, futhi ngesikhathi kuvubukulwa ePskov, ngokwesibonelo, zatholakala esikhwameni semali esinemali yaseNtshonalanga Yurophu. Lapho V. L. Yanin kuhlanganiswe amabalazwe ukusatshalaliswa ingilazi izibambo kanye slate spindles imibuthano, futhi waveza imingcele yendawo imali ukujikeleza ngaphambi  <response>: Ukuhlasela kwamaMongol, ukuqondana kwazo okuningiliziwe kwatholakala. Umcibisholo we-slate spindle ungaba uhlamvu lwemali. Kwakungenakwenzeka ukuzenzisa, ngoba idiphozi ye-pink slate e-Ovruch kwakuwukuphela kwayo eMpumalanga Yurophu. EChina, ngokwenye yezinguqulo, i-spindle yaba uhlobo lokuqala lwezinhlamvu zemali ezinembobo eyisikwele. 