स्थिरः परुषो विषमवर्णश्चाप्रतिरागी क्रयहितः ॥ कZ_०२.१३.२४ ॥
sthiraḥ paruṣo viṣamavarṇaś cāpratirāgī krayahitaḥ
Una veta estable, áspera, de color desigual y sin matiz de contraste es apta para la compra (es decir, conviene comprar con cautela/con descuento).
It legitimizes lower offer prices or stricter acceptance when the state/merchant is the buyer, reducing losses from substandard metal.