cut out specimen andesite igneous rock isolated white background |
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| navigate by keyword : black boulder brown carbon carbonate carving charcoal clay closeup coal divided economic feldspar formation fossil fuel geology granite isolated jewellery macro microcline mineral museum natural nature object ore piece raw realgar rock rough sculpture specimen stone sulfate value sample hard oxides white minerals crystal background geological andesite igneous |
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| Crushed andesite is used for road base, concrete aggregate, asphalt pavement aggregate, railroad ballast. To geologists, a rock is a natural substance composed of solid crystals of different minerals that have been fused together into a solid lump. |
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