datolite

American  

[dat-l-ahyt] / ˈdæt lˌaɪt /

noun

1. a mineral, calcium and boron silicate, CaB(SiO4 )(OH), usually occurring in rock cavities in the form of colorless, prismatic crystals.

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datolite British  

/ ˈdeɪtəˌlaɪt /

noun

1. a colourless mineral consisting of a hydrated silicate of calcium and boron in monoclinic crystalline form, occurring in cavities in igneous rocks. Formula: CaBSiO 4 (OH)

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Other Word Forms

• datolitic adjective

Etymology

Origin of datolite

1800–10; < German Datolith, equivalent to Greek dat ( eîsthai ) to divide, share out + -o- + German -lith; see -lite

Example Sentences

Large crystals of datolite completely altered to chalcedony were formerly found with magnetite in the Haytor iron mine on Dartmoor in Devonshire; to these pseudomorphs the name haytorite has been applied.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 9 "Dagupan" to "David" by Various

The color was about right, and he knew datolite was found in igneous rocks of volcanic origin.

From The Flaming Mountain by Goodwin, Harold L. (Harold Leland)

A double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah

It occurs in nature also in boracite, datolite, tourmaline, and some other minerals.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah

He uncovered a few more of the datolite crystals and put them in his pocket.

From The Flaming Mountain by Goodwin, Harold L. (Harold Leland)