Matsya Purana — Cosmography of Śākadvīpa and Successive Dvīpas: Mountains
सर्वधातुविचित्रैश्च मणिविद्रुमभूषितैः अन्यैश्च विविधाकारै रम्यैर्जनपदैस्तथा //
sarvadhātuvicitraiśca maṇividrumabhūṣitaiḥ anyaiśca vividhākārai ramyairjanapadaistathā //
And the land is adorned with delightful provinces and settlements—variegated with all kinds of metals, ornamented with gems and coral, and further marked by many other beautiful forms and features.
This verse is not about Pralaya; it describes the auspicious richness and beauty of inhabited regions, emphasizing resources (metals, gems, coral) as signs of prosperity.
It implies an ideal of governance where territories are well-developed and flourishing—suggesting that a king’s duty includes protecting resources, enabling trade/wealth, and maintaining attractive, orderly settlements.
Architecturally, it supports Vastu-oriented ideals of a “ramya” (well-formed, pleasing) settlement and hints at ornamentation and material culture—using metals and gems as markers of a well-established, auspicious civic environment.