acicular
Example Sentences
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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
Usually of a white or light greenish color and vitreous lustre, in acicular crystallizations.
From The Elements of Blowpipe Analysis by Getman, Frederick Hutton
One, named Einerguendi by Brown, consisted of compact felspar, coloured green by chlorite, with grains of quartz and acicular crystals of felspar.
From Three Expeditions into the Interior of Eastern Australia, Volume 1 by Mitchell, Thomas
Minute acicular or dendritic crystalline forms sometimes observed in glassy volcanic rocks.
From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah
Delicate acicular crystals of considerable length were found long ago in the Pentire Glaze mine near St Minver in Cornwall.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various