तीक्ष्णं चास्य मयूरग्रीवाभं श्वेतभङ्गं चिमिचिमायितं पीतचूर्णितं काकणिकः सुवर्णरागः ॥ कZ_०२.१३.४८ ॥
tīkṣṇaṃ cāsya mayūragrīvābhaṃ śvetabhaṅgaṃ cimicimāyitaṃ pītacūrṇitaṃ kākaṇikaḥ suvarṇarāgaḥ
This ‘gold-colour’ (suvarṇarāga) preparation is sharp/strong; it shows a peacock-neck sheen, breaks with a whitish fracture, crackles/sparkles (cimicimāyita), and when powdered appears yellow; it is of the kākaṇika grade/type.
They are quick field tests for officials supervising artisans and traders, enabling low-cost verification without advanced apparatus.