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I found many rocks during a trail. Some of them look interesting.
Do you know what the 2 yellow-metallic big rocks are? Do you find any other interesting rocks in the picture?
How do you know if there is an interesting mineral inside a rock like these?
Do you know what the 2 yellow-metallic big rocks are? Do you find any other interesting rocks in the picture?
How do you know if there is an interesting mineral inside a rock like these?
