NEPHELINE

nepheline, nephelite

(noun) a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form; used in the manufacture of ceramics and enamels

Source: WordNet® 3.1


Etymology

Noun

nepheline (countable and uncountable, plural nephelines)

(mineral) A feldspathoid mineral of silica-poor igneous, plutonic and volcanic rocks. Chemically, nepheline is a plagioclase feldspar with insufficient silica to satisfy the chemical bonds. Because of the unfilled bonds, nepheline weathers rapidly and can only be seen as inclusions in freshly broken rock.

Synonyms

• nephelite

Source: Wiktionary


Neph"e*line, Neph"e*lite, n. Etym: [gr. néphéline. Cf. Nebula.] (Min.)

Definition: A mineral occuring at Vesuvius, in glassy agonal crystals; also elsewhere, in grayish or greenish masses having a greasy luster, as the variety elæolite. It is a silicate of aluminia, soda, and potash.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

15 November 2024

HISTOLOGICALLY

(adverb) involving the use of histology or histological techniques; “histologically identifiable structures”


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Coffee Trivia

Some 16th-century Italian clergymen tried to ban coffee because they believed it to be “satanic.” However, Pope Clement VII loved coffee so much that he lifted the ban and had coffee baptized in 1600.

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