different between corundum vs feldspar

corundum

English

Etymology

From Tamil ????????? (kuruntam, “ruby, sapphire”) [early 18th century].

Pronunciation

(UK, US) IPA^(key): /k????n.d?m/

Noun

corundum (countable and uncountable, plural corundums)

(mineralogy) An extremely hard mineral, a form of aluminum oxide with the chemical formula Al₂O₃, that occurs in the form of the gemstones sapphire and ruby; it is used as an abrasive.

Derived terms

carborundum

Translations

corundum From the web:

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feldspar

English

Alternative forms

felspar

Etymology

Partial calque of German Feldspat, formed from Feld (“field”) + Spat (“spar”).

Noun

feldspar (countable and uncountable, plural feldspars)

(mineralogy) Any of a large group of rock-forming minerals that, together, make up about 60% of the earth's outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal constituents of igneous and plutonic rocks.

Derived terms

Related terms

feldspathic
feldspathoid
feldspathose

Translations

feldspar From the web:

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Send

different between corundum vs feldspar

corundum

English

Etymology

Pronunciation

Noun

Derived terms

Translations

Further reading

corundum From the web:

feldspar

English

Alternative forms

Etymology

Noun

Derived terms

Related terms

Translations

See also

feldspar From the web:

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