"Create a hyper-realistic image of amethyst crystals growing naturally in a cave. The scene should feel magical and otherworldly, with soft, ethereal lighting illuminating the vibrant purple crystals. The cave walls should be rough and ancient, covered in moss and glowing bioluminescent fungi. Mist rises from the ground, adding a sense of mystery and enchantment. The amethysts should appear to be radiating a gentle, internal light, enhancing the mystical atmosphere of the cave."