Why is the Vinicunca (rainbow mountain) in Peru colorful? | Geology

Why is the Vinicunca (rainbow mountain) in Peru colorful? It is located in the south of Peru, in the Andes mountains in Cusco (Kuskoo) region of Peru.

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Видео Why is the Vinicunca (rainbow mountain) in Peru colorful? | Geology канала Amit Sengupta