feldspar

noun
feld·​spar | \ ˈfel(d)-ˌspär How to pronounce feldspar (audio) \

Definition of feldspar

: any of a group of crystalline minerals that consist of aluminum silicates with either potassium, sodium, calcium, or barium and that are an essential constituent of nearly all crystalline rocks

Examples of feldspar in a Sentence

Recent Examples on the Web Later the region was mined for the feldspar in the granite ledges. courant.com, "Community News For The Colchester Edition," 12 Aug. 2019 The researchers examined zircon, an incredibly resilient mineral, as well as feldspar and quartz from the rock sample, according to Mike Wall at Space.com. Jay Bennett, Smithsonian, "Earth’s Oldest Known Rock May Have Been Found on the Moon," 28 Jan. 2019 The other important minerals available in significant quantities are limestone, dolomite, manganese, mica, china clay, graphite, fire clay, coal bed methane, uranium, phosphorite, apatite, quartz, gold, feldspar and pyroxenite. Gurvinder Singh, Quartz India, "The coal mining region in India where the ground beneath shakes and belches fire," 4 Oct. 2019 Later the region was mined for the feldspar in the granite ledges. courant.com, "Community News For The Colchester Edition," 12 Aug. 2019 Later the region was mined for the feldspar in the granite ledges. courant.com, "Community News For The Colchester Edition," 12 Aug. 2019 Later the region was mined for the feldspar in the granite ledges. courant.com, "Community News For The Colchester Edition," 12 Aug. 2019 Later the region was mined for the feldspar in the granite ledges. courant.com, "Community News For The Colchester Edition," 12 Aug. 2019 Later the region was mined for the feldspar in the granite ledges. courant.com, "Community News For The Colchester Edition," 12 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'feldspar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of feldspar

1772, in the meaning defined above

History and Etymology for feldspar

modification of obsolete German Feldspath (now Feldspat), from German Feld field + obsolete German Spath (now Spat) spar

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Time Traveler for feldspar

Time Traveler

The first known use of feldspar was in 1772

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Cite this Entry

“Feldspar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/feldspar. Accessed 22 Feb. 2020.

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More Definitions for feldspar

feldspar

noun
How to pronounce feldspar (audio)

English Language Learners Definition of feldspar

: a very common type of mineral

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More from Merriam-Webster on feldspar

Rhyming Dictionary: Words that rhyme with feldspar

Spanish Central: Translation of feldspar

Nglish: Translation of feldspar for Spanish Speakers

Britannica.com: Encyclopedia article about feldspar

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