augite वाक्य

उदाहरण वाक्य

1. Dark brown varieties of augite and rhombic pyroxene ( hypersthene or bronzite ) have been observed but are not common.
2. These rocks contain also iron oxides ( usually titaniferous ), apatite, sometimes sphene, augite, and olivine.
3. Pigeonite crystallizes in the monoclinic system, as does augite, and a miscibility gap exists between the two minerals.
4. Textural evidence of its breakdown to orthopyroxene plus augite may be present, as shown in the accompanying microscopic image.
5. The commonest ferromagnesian mineral is augite ( sometimes rich in sodium ), with olivine in the more basic varieties.
6. Most of the dolerites are fine to medium grained, dark grey rocks with augite and plagioclase as major constituents.
7. Augite, biotite, plagioclase and hornblende occur as microphenocrysts and comprise 1 % to 7 % of the andesite.
8. But the plutonic representatives of the same magma, granite and syenite contain biotite and hornblende far more commonly than augite.
9. In tholeiitic basalt, pyroxene ( augite and orthopyroxene or pigeonite ) and calcium-rich plagioclase are common phenocryst minerals.
10. Green augite and hypersthene form a considerable part of these rocks, they may contain also biotite, hornblende and quartz.