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Amazon.de:Hardest Rock
Surface of rocky wall with different hardnesses where the parts of the hardest rock stand out, forming slienties. Can be used as background. Stock-Foto | Adobe Stock
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![VIDEO] La Dura Complete: The Hardest Rock Climb In The World - Climbing.de](https://www.climbing.de/wp-content/uploads/2014/12/youtube_V1P97VVt6_k.jpg "VIDEO] La Dura Complete: The Hardest Rock Climb In The World - Climbing.de")
VIDEO] La Dura Complete: The Hardest Rock Climb In The World - Climbing.de
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Small Piece of the Hardest Kind of Granite Bed Rock with Its Typical Texture Stock Photo - Image of monotone, natural: 152854862
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If diamond is the hardest rock on earth (and hard by definition is solid, firm, and resistant to pressure; not easily broken, bent or pierced), and it can break with a hammer
