चतुर्भागसुवर्णं वा वालुकाहिङ्गुलुकस्य रसेन चूर्णेन वा वासयेत् ॥ कZ_०२.१३.४६ ॥
caturbhāgasuvarṇaṃ vā vālukāhiṅgulukasya rasena cūrṇena vā vāsayet
He should steep/impregnate one-fourth part of gold with the juice (extract) or the powder of vālukā-hiṅgula (a cinnabar-like mineral preparation).
Because controlled treatments and recipes support consistent appearance/quality in state workshops and reduce fraud in trade, taxation, and minting.
It functions as a standardized operating procedure (SOP) for artisans under state supervision, enabling inspection and accountability.