Is Basalt porous

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It may be compact or vesicular (porous) because of gas bubbles contained in the lava while it was cooling. If the vesicles are subsequently filled with secondary minerals, such as quartz or calcite, it is called amygdaloidal basalt. ... basalt Hard, fine-grained, basic igneous rock, which may be intrusive or extrusive.

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Updated: 2019/10/18

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