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; -lite

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg

A variety of datolite, usually having a botryoidal structure.

From Project Gutenberg

The crystals were for a long time considered to be orthorhombic, and indeed they approach closely to this system in habit, interfacial angles and optical orientation; humboldtite was the name given by A. L�vy in 1823 to monoclinic crystals supposed to be distinct from datolite, but the two were afterwards proved to be identical.

From Project Gutenberg

Datolite is white or colourless, often with a greenish tinge; it is transparent or opaque.

From Project Gutenberg