Nummulitic limestone forming the bedrock of the Great Pyramid.jpg
WLU <small>[[:w:User talk:WLU
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Nummulitic limestone forming the bedrock of the Great Pyramid, Limestone textures, Limestone structures
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Nummulitic limestone forming the bedrock of the Great Pyramid, Nummulitic limestone forming the bedrock of the Great Pyramid.
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大ピラミッドの岩盤を形成する乳石灰岩、石灰岩のテクスチャ、石灰岩の構造
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大ピラミッドの岩盤を形成する乳輪石灰岩、乳輪石灰岩。
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calcium oxide calcium carbonate subsurface limestone bedrock