acicular

Example Sentences

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The plumbago occurs both amorphous, and in long acicular crystals.

From In the Arctic Seas A Narrative of the Discovery of the Fate of Sir John Franklin and his Companions by McClintock, Francis Leopold

Mī′crolith, a name suggested by Vogelsang in 1867 for the microscopic acicular components of rocks.—adj.

From Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) by Various

The fragments are angular or rounded, small or large, and consist of bluish or reddish compact feldspathic matter, in which a few acicular crystals of feldspar can sometimes be seen.

From Geological Observations on South America by Darwin, Charles

The phonolite is of a greenish-grey colour, and is full of minute acicular crystals of feldspar; in most parts it has a conchoidal fracture, and is sonorous, yet it is crenulated with minute air-cavities.

From Volcanic Islands by Darwin, Charles

Sammetblende or przibramite is a variety, from Przibram in Bohemia, consisting of delicate acicular or capillary crystals arranged in radiating groups with a velvety surface and yellow colour.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" by Various