सर्वधातूनां गौरववृद्धौ सत्त्ववृद्धिः ॥ कZ_०२.१२.०७ ॥
sarvadhātūnāṃ gauravavṛddhau sattvavṛddhiḥ
For all metals/mineral-ores, an increase in heaviness (specific weight) indicates an increase in the metal-yield (sattva).
It gives state officials a quick, operational field-test to grade ore/metal lots for procurement, pricing, and workshop allocation—reducing fraud and improving output planning.
Not ‘courage’ but the metallic essence: the recoverable metal content/yield and (by implication) purity.