कालायसस्यार्धभागाभ्यक्तं कृष्णं भवति ॥ कZ_०२.१३.५५ ॥
kālāyasasyārdhabhāgābhyaktaṃ kṛṣṇaṃ bhavati
ক’লা লোহা (কালায়স)ৰ অৰ্ধ ভাগেৰে লেপ/উপচাৰ কৰিলে ই ক’লা হয়।
Surface treatments can disguise base metals; state knowledge of such methods supports enforcement against fraud in bullion, ornaments, and coin-like pieces.