रूप्यरत्नपरीक्षा कला

jayamangal ke matanusar chauansath kalaoan mean se yah ek kala hai. sikke, ratn adi ki pariksha karane ki kala. ratnoan ki pahachan aur unamean vedh (chhidr) karane ki kriya ka jnan 'kala' hai. prachin samay se hi achchhe bure ratnoan ki pahachan tatha unake dharan se hone vale shubhashubh phal ka jnan yahaan ke logoan ko tha. grahoan ke anisht phaloan ko rokane ke liye vibhinn ratnoan ko dharan karane ka shastroan ne upadesh kiya hai. usake anusar ratnoan ko dharan karane ka phal aj bhi pratyaksh dikhalayi deta hai. par aj to bharatavarsh ki yah sthiti hai ki adhikaansh logoan ko un ratnoan ka dharan karana to door raha, darshan bhi durlabh hai.