Basalt: meaning, definitions and examples

Use when referring specifically to the fine-grained, dark-colored volcanic rock commonly found on the surface of the Earth and the ocean floor.

• The road was paved with basalt for its durability
• Basalt columns formed naturally over millions of years

Use when describing rocks that originate from volcanic activity, but without specifying whether they were formed above or below ground from lava or magma. Can describe a broad range of rock types linked to volcanoes.

• The island's coastline is dominated by volcanic rock formations
• Scientists studied the volcanic rocks to learn more about the area's eruption history

Use when referring to rocks specifically formed from lava that has solidified above ground after a volcanic eruption. Often used in a landscaping or decorative context.

• Lava rock is popular for garden mulch because it doesn't decompose
• The lava rock added a rustic look to the pathway

Use when discussing or describing rocks that form through the cooling and solidification of magma or lava in a more general sense. Covers a broad range of rock types beyond basalt.

• Granite and basalt are both types of igneous rock
• The geologist explained how various igneous rocks are formed

Used mainly in geological and industrial contexts to refer specifically to the dark-colored volcanic rock that forms from cooled lava. Suitable for conversations about natural formations, road construction, and architectural projects involving stone.

• The cliffs along the coast are primarily composed of basalt.
• Basalt is frequently used in construction due to its durability and density.

A general term that can apply to a wide range of materials used in building projects, not limited to stone. It is common in engineering, architecture, and construction planning conversations.

• Selecting the right construction material is crucial for the project's success.
• Concrete is a versatile construction material widely used in modern infrastructure.

Refers to any natural stone used in construction, emphasizing its application in building structures. Common in discussions about architecture, renovation, and historical preservation.

• Granite is a popular building stone for its durability and aesthetic appeal.
• The ancient church was constructed from locally sourced building stone.

Describes any rock that is particularly tough and durable. This term can be used in both geological contexts and general conversations about rock types, often emphasizing the physical properties of the rock.

• Mining hard rock requires specialized equipment due to its toughness.
• Basalt is considered a hard rock, making it suitable for heavy-duty construction.