Pṛthivy-Āyāma-Vistara (Extent of the Earth) and Jambūdvīpa–Navavarṣa Description
नीलश्च वैदुर्यमयः श्वेतः घुक्लो हिरण्मयः / मयुरबर्हवर्णस्तु शातकैंभश्च शृङ्गवान्
nīlaśca vaiduryamayaḥ śvetaḥ ghuklo hiraṇmayaḥ / mayurabarhavarṇastu śātakaiṃbhaśca śṛṅgavān
One is blue, as though formed of vaidūrya gem; one is white, radiant and golden; one bears the hue of peacock plumes; and one, like śātakumbha gold, is horned.