श्यावो नीलश्चाप्राप्तकः ॥ कZ_०२.१३.२७ ॥
śyāvo nīlaś cāprāptakaḥ
যদি সি গাঢ় বাদামী বা নীলচে হয়, তেন্তে সি গ্ৰহণযোগ্য নহয়।
It means the treasury/mint should not accept such metal as standard bullion—preventing loss from impure or debased gold.