: a dark gray to black dense to fine-grained igneous rock that consists of basic plagioclase, augite, and usually magnetite
Examples of basalt in a Sentence
Recent Examples on the Web
At its entrance, monumental basalt sculptures lean precariously against 14th-century walls, reversing the traditional role of the caryatid and quietly speaking to visitors.
—
Y-Jean Mun-Delsalle, Forbes.com, 10 June 2026
Unlike metallic structures, basalt fiber is non-conductive and exhibits low dielectric properties.
—Kaif Shaikh, Interesting Engineering, 26 May 2026
While there is a variety of soil types throughout the vineyard, the high quantities of rock including fractured basalt help with both drainage and water retention at depth, and large deposits of iron and manganese add to the wine’s minerality.
—Mike Desimone, Robb Report, 17 May 2026
The process of freeing these components from basalt looks more like a refining or recycling process than the toss-it-in-the-oven simplicity of the limestone process.
—Scott K. Johnson, ArsTechnica, 15 May 2026
See All Example Sentences for basalt
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Y-Jean Mun-Delsalle, Forbes.com, 10 June 2026
Unlike metallic structures, basalt fiber is non-conductive and exhibits low dielectric properties.
—Kaif Shaikh, Interesting Engineering, 26 May 2026
While there is a variety of soil types throughout the vineyard, the high quantities of rock including fractured basalt help with both drainage and water retention at depth, and large deposits of iron and manganese add to the wine’s minerality.
—Mike Desimone, Robb Report, 17 May 2026
The process of freeing these components from basalt looks more like a refining or recycling process than the toss-it-in-the-oven simplicity of the limestone process.
—Scott K. Johnson, ArsTechnica, 15 May 2026
See All Example Sentences for basalt
Cite this Entry
“Basalt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/basalt. Accessed 17 Jun. 2026.
Copy CitationKids Definition
: a dark gray to black usually fine-grained igneous rock
Love words? Need even more definitions?
Merriam-Webster unabridged
