About Rocks and Minerals
Rocks and minerals form the foundation of Earth’s crust and play a vital role in shaping the planet’s surface. While minerals are naturally occurring, inorganic substances with a specific chemical composition and structure, rocks are solid aggregates made up of one or more minerals. Every rock tells a story — of pressure, heat, weathering, or volcanic activity — and studying them helps scientists understand Earth’s history.
Rocks are classified into three main types based on their formation process:
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Igneous rocks – Formed from the cooling of molten magma (e.g., granite, basalt).
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Sedimentary rocks – Formed from the accumulation and compaction of sediments (e.g., sandstone, limestone).
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Metamorphic rocks – Formed when existing rocks are transformed by heat and pressure (e.g., marble, slate).
Minerals like quartz, mica, feldspar, and calcite are the building blocks of rocks and are also essential for industrial uses, construction, technology, and even health (e.g., calcium, iron).
Understanding rocks and minerals is crucial in geology, mining, civil engineering, and environmental studies. From the majestic mountains to everyday tools, rocks and minerals are part of our daily life in ways we often overlook. This quiz will test your deeper knowledge of this fascinating Earth science topic.
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