Matsya Purana — Ritual Procedure and Merit of Donating the Ratnācala
वैदूर्यविद्रुमैः पश्चात् सम्मिश्रो विमलाचलः पद्मरागैः ससौवर्णैर् उत्तरेण च विन्यसेत् //
vaidūryavidrumaiḥ paścāt sammiśro vimalācalaḥ padmarāgaiḥ sasauvarṇair uttareṇa ca vinyaset //
To the west, one should place the Vimalācala stone mixed with vaidūrya (cat’s-eye) and vidruma (coral); and to the north, one should set padmarāga (ruby) together with gold.
This verse does not address Pralaya directly; it gives technical Vastuvidya instructions for arranging specific gems/materials by direction in a sacred architectural layout.
It supports dharmic duty through correct patronage and execution of sacred building—kings and householders gain merit by following prescribed directional rules for temple/altar construction and consecratory layouts.
It prescribes a directional material schema: west placement involving Vimalācala mixed with cat’s-eye and coral, and north placement of ruby together with gold—used to align construction/ritual space with auspicious directional qualities.