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地球的宝藏：矿物的神秘世界
你知道吗？地球深处隐藏着一座巨大的宝库，那里有形态各异、色彩斑斓的矿物，每一块都是自然界的艺术品。今天，我们就一起揭开这神秘的面纱，探索矿物的奥秘！
宇宙知识探秘324/345
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