How To Use Augite In A Sentence
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All basalt chemical compositions can be plotted in the basalt tetrahedron, which has normative quartz, olivine, nepheline and augite at the apices.
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We are not, it appears to me, more justified in applying the term telluric to the nickel and iron, the olivine and pyroxene (augite), found in meteoric stones, than in indicating the
COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1
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The plagioclase feldspar weathers to produce a whitish gray rock, while the mafic minerals (olivine, augite and hypersthene) produce contrasting darker grains.
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Thus the order of phenocryst appearance in Kilauea lavas is olivine, plagioclase, augite whereas in Mauna Loa lavas it is olivine, augite, plagioclase.
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'Euphotide' and serpentine, containing sometimes crystald of augite and uralite instead of diallage, are thus nearly allied to another more frequent, and I might almost say, more 'energetic' eruptive rock -- augitic porphyry.
COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1
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The latter form by dehydration melting at less than 10-12 kbar leaving a residue of augite, orthopyroxene, plagioclase and varying amounts of amphibole.
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Their number is by no means large, and they all consist of mixtures in variable proportions of quartz, felspar, mica, hornblende, augite, and zeolites.
Elements of Agricultural Chemistry
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Hornblende and augite are two widely distributed minerals, which are so similar in composition and properties that they may be considered together.
Elements of Agricultural Chemistry
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They are divisible into two great classes, which have received the names of diorite and dolerite, the former a mixture of albite and hornblende, the latter of augite and labradorite, sometimes with considerable quantities of a sort of oligoclase containing both soda and lime, and of different kinds of zeolitic minerals.
Elements of Agricultural Chemistry
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Should we conclude from this position that they are of more recent formation than the lithoid basaltic lava, which contains olivine and augite?
Travels to the Equinoctial Regions of America
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They typically comprise early olivine and plagioclase, ophitically enclosed by augite, with opaque oxides and apatite.
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They are divisible into two great classes, which have received the names of diorite and dolerite, the former a mixture of albite and hornblende, the latter of augite and labradorite, sometimes with considerable quantities of a sort of oligoclase containing both soda and lime, and of different kinds of zeolitic minerals.
Elements of Agricultural Chemistry
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Below this were strata of trachitic breccia and augite; the formation was then seamy to an unknown depth.
Scientific American Supplement, No. 392, July 7, 1883
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In the Jerome or Verde district of central Arizona, folded pre-Cambrian greenstones and sediments were invaded by masses of quartz-porphyry, and after further deformation, rendering many of the rocks schistose, were intruded by an augite-diorite.
The Economic Aspect of Geology
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The most common phenocryst silicate phases are olivine, plagioclase and augite, typically, although not always, appearing in that order.
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So you don't know the difference between augite and hornblende?" he once enquired.
South Wind
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This is more especially true of chlorite, schorl, hornblende and augite.
A Text-book of Assaying: For the Use of Those Connected with Mines.
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All basalt chemical compositions can be plotted in the basalt tetrahedron, which has normative quartz, olivine, nepheline and augite at the apices.
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This regular disposition of lithoid basaltic lava and feldsparry vitreous lava is analogous to the phenomena of all trappean mountains; it reminds us of those phonolites lying in very ancient basalts, those close mixtures of augite and feldspar which cover the hills of wacke or porous amygdaloids: but why are the porphyritic or feldsparry lavas of the Peak found only on the summit of the volcano?
Travels to the Equinoctial Regions of America
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The cpx is classified as augite based on average composition, and displays a very narrow compositional range.
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Dolerite, when composed entirely of augite and labradorite, produces rather inferior soils; but when it contains oligoclase and zeolites, and comes under the head of basalt, its disintegration is the source of soils remarkable for their fertility; for these latter substances undergoing rapid decomposition furnish the plants with abundant supplies of alkalies and lime, while the more slowly decomposing hornblende affords the necessary quantity of magnesia.
Elements of Agricultural Chemistry
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Shimmering with dazzling soft lavender, violet or lilac luster to a deeper dark and mysterious purple with whirling patterns of black Augite, microcline feldspar lucid crystals tinged with orange Tinaksite describes the rare and recently discovered mineral gem Charoite.
SciFi, Fantasy & Horror Collectibles - Part 649
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Minerals that remove Ti include augite and ilmenite/titanomagnetite.
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This regular disposition of lithoid basaltic lava and feldsparry vitreous lava is analogous to the phenomena of all trappean mountains; it reminds us of those phonolites lying in very ancient basalts, those close mixtures of augite and feldspar which cover the hills of wacke or porous amygdaloids: but why are the porphyritic or feldsparry lavas of the Peak found only on the summit of the volcano?
Travels to the Equinoctial Regions of America
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Pyroxene, quartz and augite form the groundmass, as seen in section.
The Long Labrador Trail
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Pyroxene is exclusively diopsidic augite, with a composition relatively colse to the diopside - hedenbergite join.
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The erupted rocks which have broken through and upheaved these strata have been elevated from depths that are wholly inaccessible to our research; they must, therefore, have existed under the silurian strata, and been composed of the same association of minerals which we term granite, augite, and quartzose porphyry, when they are made known to us by eruption through the surface.
COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1
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At the destruction of Riobamba, in the year 1797, when the shocks were not attended by any outbreak of the neighboring volcano, a singular mass called the 'Moya' was uplifted from the earth in numerous continuous conical elevations, the whole being composed of carbon, crystals of augite, and the silicious shields of infusoria.
COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1
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As will be shown in the mineralogy section of this paper, the spilitic rocks are characterised by fresh augite, albitic feldspar, and an abundant development of epidote and pumpellyite.
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The volcanics were described by Aghabawa as alkaline basalts, hawaiites and mugearites with plagioclase, olivine and augite as the essential constituents.
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With the exception of quartz and augite, these names are, however, representatives of different classes of minerals.
Elements of Agricultural Chemistry
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As cooling continues, plagioclase (a mixture of two kinds of aluminum silicates) and the pyroxene mineral augite (a magnesium silicate mixed with some iron) form.
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Taken, then, a liquid which is heavy -- the most convenient is methylene iodide, whose specific gravity is 3.3 -- a fragment of zircon will sink in this, and a fragment of tourmaline will float, but a fragment of the mineral augite, whose specific gravity is also 3.3, will remain exactly suspended.
Scientific American Supplement, No. 1082, September 26, 1896
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The plagioclase feldspar weathers to produce a whitish gray rock, while the mafic minerals (olivine, augite and hypersthene) produce contrasting darker grains.
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The most common phenocryst silicate phases are olivine, plagioclase and augite, typically, although not always, appearing in that order.
