खनिः स्रोतः प्रकीर्णकं च योनयः ॥ कZ_०२.११.३८ ॥
khaniḥ srotaḥ prakīrṇakaṃ ca yonayaḥ
The sources (of gems) are: mines, river-streams, and scattered deposits.
By defining extraction contexts, it enables different rules for licensing, labor control, inspection, and revenue collection across mines, rivers, and surface finds.
They imply different enforcement problems: river collection needs patrol/seasonal rules; scattered deposits need land control and anti-theft measures.