Malachite does more rarely occur in some interesting micro-crystal forms usually as acicular crusts and tufts. From LearnThat.org. [.http://www.gamineral.org/micromount_corner2.html]
One I like to point to as an example is "acicular" which goes. From Wordnik.com. [languagehat.com: OEDILF.] Reference
Echinate: Beset with acicular extensions (Fig. 150, c). From Wordnik.com. [The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.] Reference
One fissure was completely lined with exquisite, acicular crystals of sulphur, which perished with a touch. From Wordnik.com. [Unbeaten Tracks in Japan] Reference
Hyoscyamine crystallizes in the acicular form, with greater difficulty even than atropine, it also forms less compact crystals. From Wordnik.com. [Scientific American Supplement, No. 324, March 18, 1882] Reference
The crystals are usually small and are prismatic or acicular in habit; they have a perfect cleavage parallel to the face lettered a in the adjoining figure. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"] Reference
Thus, the acicular-leaved trees, consisting of Pines and their congeners, mark the cold-temperate and sub-arctic zones, in north latitude, -- while Myrtles. From Wordnik.com. [The Atlantic Monthly, Volume 08, No. 46, August, 1861] Reference
Further along the tube it is slowly deposited in a porcelain like form, while further still the sublimate of sulphide takes the form of brilliant acicular crystals. From Wordnik.com. [Scientific American Supplement, No. 841, February 13, 1892] Reference
In the same manner I treated the acicular leaves, and portions of the stem separately, both being previously cut up into small pieces, and from both I obtained phenol. From Wordnik.com. [Scientific American Supplement, No. 443, June 28, 1884] Reference
At the latter temperature dense white fumes appear, and a condensation of tufts of acicular crystals (some well defined) is found upon the cool surface of the apparatus. From Wordnik.com. [Scientific American Supplement, No. 620, November 19,1887] Reference
Those of the beryl we sometimes find quite flat, as though they had been compressed by force: then again they are acicular and of extraordinary length, considering their slender diameter. From Wordnik.com. [Lippincott's Magazine of Popular Literature and Science Volume 11, No. 27, June, 1873] Reference
Professors Babcock and Munroe, of Chicago, call the plants either the Hydrogastrum of Rabenhorst, or the Botrydium of the Micrographic Dictionary, the crystalline acicular bodies being deemed parasitic. From Wordnik.com. [Scientific American Supplement, No. 385, May 19, 1883] Reference
Rifle is a handheld weapon that is acicular at the enemy. From Wordnik.com. [MyLinkVault Newest Links] Reference
Soon Birdie and myself were a mass of acicular crystals; it was a true easterly fog. From Wordnik.com. [A Lady's Life in the Rocky Mountains] Reference
Wollastonite is an industrial commodity, and is the only naturally occurring, non-metallic, white acicular mineral. From Wordnik.com. [Marketwire - Breaking News Releases] Reference
Martensite is a microconstituent or structure in quenched steel characterized by an acicular or needle-like pattern on the surface of polish. From Wordnik.com. [MyLinkVault Newest Links] Reference
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 Wordnik.com. [Bournemouth, Poole & Christchurch] Reference
System, which could have belonged to true trees, are of the acicular form common to the Coniferæ, and show in their dense ligneous structure that they were persistent, not deciduous. From Wordnik.com. [The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed] Reference
The acicular leaves of firs, pines, and coniferæ in general, are composed of a bundle, or fasciculus, as a botanist would say, of extremely fine and tenacious fibres, which are surrounded and held together by thin pellicles of a resinous substance. From Wordnik.com. [Chambers's Edinburgh Journal, No. 458 Volume 18, New Series, October 9, 1852] Reference
Compared with existing floras, that of our Scottish Oolite seems to have most nearly resembled the flora of New Zealand, -- a flora remarkable for the great abundance of its ferns, and its vast forests of coniferous trees, that retain at all seasons their coverings of acicular spiky leaves. From Wordnik.com. [The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed] Reference
Signs of volcanic activity are present more or less throughout its whole depth, and for some distance round its margin, in the form of steam cracks, jets of sulphurous vapour, blowing cones, accumulating deposits of acicular crystals of sulphur, etc., and the pit itself is constantly rent and shaken by earthquakes. From Wordnik.com. [The Hawaiian Archipelago] Reference
The motion, submitted to the TUC by the Society of Chiropodists and Podiatrists acicular out that "around two actor canicule a year are absent through affection as a aftereffect of lower limb disorders" and that "many administration in the retail area force women workers to abrasion top heels as allotment of their dress code". From Wordnik.com. [Labour of Love] Reference
Grinding trials have yielded acicular material of which 50% has an aspect ratio greater than 15: 1. From Wordnik.com. [Marketwire - Breaking News Releases] Reference
■ fibrous, with flendcr acicular feparate concretions. From Wordnik.com. [Elements of Mineralogy: By Richard Kirwan, ...] Reference
3 to 10 mm. in diameter; hypothecium pale brown; hymenium pale below and dark brown above; asci clavate to cylindrico-clavate; spores acicular, straight or slightly curved, 4 - to 6-celled, 42 to 70 mic. long and 3 to. From Wordnik.com. [Ohio Biological Survey, Bull. 10, Vol. 11, No. 6 The Ascomycetes of Ohio IV and V] Reference
Any object "acicular". From Wordnik.com. [languagehat.com: OEDILF.] Reference
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