Normally, no one would think of any mountains to take such amazing colors but the Quran mentions the existence of colorful mountains as one of Allah’s creations. Here is the verse of the Quran:

أَلَمْ تَرَ أَنَّ الله أَنزَلَ مِنَ السَّمَاءِ مَاءً فَأَخْرَجْنَا بِهِ ثَمَرَاتٍ مُّخْتَلِفًا أَلْوَانُهَا ۚ وَمِنَ الْجِبَالِ جُدَدٌ بِيضٌ وَحُمْرٌ مُّخْتَلِفٌ أَلْوَانُهَا وَغَرَابِيبُ سُودٌ وَمِنَ النَّاسِ وَالدَّوَابِّ وَالْأَنْعَامِ مُخْتَلِفٌ أَلْوَانُهُ كَذَٰلِكَ ۗ إِنَّمَا يَخْشَى اللَّهَ مِنْ عِبَادِهِ الْعُلَمَاءُ ۗ إِنَّ اللَّهَ عَزِيزٌ غَفُورٌ
Have you not seen that Allah sends down water from the sky? With it We produce fruits of various colors. And in the mountains are streaks of white and red — varying in their hue — and pitch-black. Likewise, human beings, animals, and livestock come in various colors. From among His servants, the learned fear Allah. Allah is Almighty, Oft-Forgiving.
—Quran 35:27–28