मणयो रूप्यं सुवर्णं वा घनसुषिराणां पिङ्कः ॥ कZ_०२.१४.४१ ॥
maṇayo rūpyaṃ suvarṇaṃ vā ghanasuṣirāṇāṃ piṅkaḥ
Gemas, prata ou ouro—sejam maciços ou ocos—enquadram-se na categoria chamada «piṅka».
Hollow construction enables concealment/substitution and weight fraud; classification cues inspectors to apply stricter tests and valuation rules.