Valmiki Ramayana Kishkindha Kanda Sarga 27 Shloka 15
Original Shlokaदक्षिणस्यामपि दिशि स्थितं श्वेतमिवापरम्। कैलासशिखरप्रख्यं नानाधातुविभूषितम्4.27.15।।
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दक्षिणस्यांदिशि in the southern direction, स्थितम् is located, श्वेतम् white, इवापरम् like another, कैलासशिखर प्रख्यम् like the tip of Kailasa mountain, नानाधातुविभूषितम् rich with various minerals.
'In the southern direction is a white rock appearing as if it is another mountain. It looks like mount Kailas and is rich with various minerals.