Matsya Purana — Cosmography of Śākadvīpa and Successive Dvīpas: Mountains
बलाहकस्तृतीयस्तु जात्यञ्जनमयो गिरिः द्युतिमान्नामतः प्रोक्तः स एव च महीधरः //
balāhakastṛtīyastu jātyañjanamayo giriḥ dyutimānnāmataḥ proktaḥ sa eva ca mahīdharaḥ //
The third mountain is Balāhaka, said to be formed of natural añjana (collyrium). By name it is declared Dyutimān, and that very one is a great mahīdhara, a bearer of the earth.
This verse is not about Pralaya; it belongs to a cosmographic listing that classifies mountains by name and substance, describing the world’s structure rather than its dissolution.
Indirectly, such geographic catalogues support a king’s worldview—knowing sacred geography, resources (minerals like añjana), and the ordered cosmos that dharma is meant to protect.
No direct Vāstu or ritual rule is stated, but the mention of añjana (collyrium/mineral pigment) is relevant as a traditional material used in ritual cosmetics and icon/eye detailing in later temple and image-making practice.