acicular

Example Sentences

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Crystals of arsenic belong to the rhombohedral system, and have a perfect cleavage parallel to the basal plane; natural crystals are, however, of rare occurrence, and are usually acicular in habit.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various

Here, in storm or shine, is shelter from the winter wind or shade from the summer sun, while underfoot the fallen acicular leaves of the pines are impervious to the damp.

From Bournemouth, Poole & Christchurch by Haslehust, E. W.

Sagenite, sāj′en-īt, n. acicular crystals of rutile occurring in reticulated forms embedded in quartz.—adj.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

Minute acicular or dendritic crystalline forms sometimes observed in glassy volcanic rocks.

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

These brown-coloured, compact lavas, consist almost entirely of small glimmering scales, or of minute acicular crystals, of feldspar, placed close by the side of each other, and abounding with minute black specks, apparently of hornblende.

From Volcanic Islands by Darwin, Charles