Valmiki Ramayana Sundara Kanda Sarga 9 Shloka 16
Original Shlokaजालवातायनैर्युक्तं काञ्चनैः स्स्फाटिकैरपि। इन्द्रनीलमहानीलमणिप्रवरवेदिकम्।।5.9.16।।
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काञ्चनैः with gold, स्फाटिकैरपि with crystal also, जालवातायनैः by latticed windows, युक्तम् endowed, इन्द्रनीलमहानीलमणिप्रवरवेदिकम् platforms encrusted with saphires called Indraneela and Mahaneela.
It had latticed windows made of gold inlaid with crystals. The platforms were encrusted with saphires called Indraneela and Mahaneela appropriately.