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

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)

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

Certain pseudomorphs of chalcedony after datolite, from Haytor in Devonshire, have received the name of “haytorite.”

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

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

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

A variety of datolite, usually having a botryoidal structure.

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