diopside वाक्य
उदाहरण वाक्य
मोबाइल
- These minerals such as chromium diopside ( a pyroxene ), chromium spinels, magnesian ilmenite, and pyrope garnets rich in chromium, are generally absent from most other igneous rocks, making them particularly useful as indicators for kimberlites.
- The groundmass mineralogy, which more closely resembles a true composition of the igneous rock, is dominated by carbonate and significant amounts of forsteritic olivine, with lesser amounts of pyrope garnet, Cr-diopside, magnesian ilmenite and spinel.
- Mantle-peridotite xenolith from San Carlos Indian Reservation, Gila Co ., Arizona, USA . The xenolith is dominated by green peridot olivine, together with black orthopyroxene and spinel crystals, and rare grass-green diopside grains.
- In nearshore marine deposit sediment, the source material is less quartz ( less silica ) compared to upriver sources; heavy minerals include pyroxene ( a group of silicate minerals ), hypersthene ( magnesium iron silica ), and diopside ( magnesium calcium silica ).
- Chrome diopside ( ( Ca, Na, Mg, Fe, Cr ) 2 ( Si, Al ) 2 O 6 ) is a common constituent of peridotite xenoliths, and dispersed grains are found near kimberlite pipes, and as such are a prospecting indicator for diamonds.
- Minerals encountered in xenoliths include : andradite, anhydrite, anorthite, apatite, biotite, calcite, diopside, fassaite, garnet, gypsum, ilmenite, magnetite, monazite, orthopyroxene, perovskite, plagioclase, prehnite, quartz, sphene, thorite, wilkeite, wollastonite and zircon.
- Despite its chemical similarity to the compositional spectrum of the pyroxene group of minerals where magnesium and iron substitution for calcium ends with diopside and hedenbergite respectively it is structurally very different, with a third SiO 4 tetrahedron in the linked chain ( as opposed to two in the pyroxenes ).
- In the beginning of the use of tin oxide, it is mainly viewed as a SEM photomicrographs of some earlier Islamic glazed ceramics, of which the particles of tin oxide are concentrated at the interface, together with the existence of wollastonite, diopside and air bubble as other opacifiers.
- Group-I kimberlites are of CO 2-rich ultramafic potassic igneous rocks dominated by primary forsteritic olivine and carbonate minerals, with a trace mineral assemblage of magnesian ilmenite, chromium pyrope, almandine-pyrope, chromium diopside ( in some cases subcalcic ), phlogopite, enstatite and of Ti-poor chromite.
- A second great group of hornfels are the recrystallize as marbles, but where there has been originally an admixture of sand or clay lime-bearing silicates are formed, such as diopside, epidote, garnet, sphene, vesuvianite and scapolite; with these phlogopite, various feldspars, pyrites, quartz and actinolite often occur.
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