bomb: Quick Facts

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Also Known As	volcanic bomb

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A chart categorizes common textural terms for rocks by grain size in millimeters, dividing them into igneous and metamorphic, sedimentary, and pyroclastic types, with terms like phaneritic, sand, silt, breccia, and ash shown in relation to size.

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bread-crust bomb cow-dung bomb spindle bomb volcanic block agglomerate agglutinate ejecta pyroclastic flow lava lapillus lahar