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Featured Word B2

limestone (noun)

Limestone is a type of sedimentary rock composed primarily of calcium carbonate, often originating from the skeletal fragments of marine organisms. It is a common building material and is also used in the production of cement, lime, and as a soil conditioner. Its porous nature makes it susceptible to erosion by water, leading to the formation of caves and sinkholes.

💬 Example

"The cliffs along the coast are composed of soft limestone."

💡 Memory Tip

Think of a 'LIME' (the fruit) sitting on a 'STONE.' Imagine the lime juice slowly dissolving the stone. This helps you r...

🏛️ Origin

⚠️ Common Mistakes

The volcano erupted and limestone came out. → The volcano erupted and basalt (or lava) came out.

I need to buy a limestone for my garden. → I need to buy some limestone for my garden.

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