Dragot︠s︡i︠e︡nnye kamni, ikh nazvanīi︠a︡ i svoĭstva po poni︠a︡tīi︠a︡m armi︠a︡n v XVII vi︠e︡ki︠e︡by K. P. PatkanovPrecious stonesWriting a summary for young readers…For young readersBook data: Open Library