Matsya Purana — Division of Bhārata-varṣa
तत्र जाम्बूनदं नाम कनकं देवभूषणम् इन्द्रगोपकसंकाशं जायते भासुरं च यत् //
tatra jāmbūnadaṃ nāma kanakaṃ devabhūṣaṇam indragopakasaṃkāśaṃ jāyate bhāsuraṃ ca yat //
There arises the gold called Jāmbūnada, fit for the ornaments of the gods—radiant and gleaming, with a hue like the indragopa insect.
This verse does not describe pralaya; it belongs to the cosmographic section, highlighting the wondrous natural production of Jāmbūnada gold in a sacred region of Jambūdvīpa.
Indirectly, it frames certain substances as divinely valued and auspicious; kings and householders are encouraged in Purāṇic ethics to use precious resources (like gold) in righteous ways—supporting worship, gifts (dāna), and legitimate adornment rather than greed.
By calling Jāmbūnada ‘fit for divine ornaments,’ the verse supports the ritual-architectural idea that pure, luminous metals are appropriate for temple icon ornaments and sacred decorations—useful for Matsya Purana Vastu Shastra tips on auspicious materials.