| 词汇 | diopside |
| 释义 | BETA Examples of diopsidediopside isn’t in the Cambridge Dictionary yet. You can help! In the olivine melagabbro, mineral modes are 40 % plagioclase, 30 % olivine, 25 % diopside and 5 % chromite with trace sulphide and phlogopite. The appearance of plagioclase before diopside may have been caused a decrease in volatile pressure during crystallization as described below. Diopside-bearing amphibolites occur as bands, up to several metres thick, in the gneiss and marble. Commonly, hornblende and/or biotite grew at the expense of hypersthene and diopside. The common mineral assemblage in the amphibolites is plagioclase + hornblende + diopside + epidote. The relict porphyroblasts are surrounded by small garnet neoblasts that extend into and define the foliation, which are in contact with pargasite, oligoclase, titanite and occasionally small relict diopside grains. Garnet and diopside amphibolites have been strongly altered with garnet pseudomorphed by aggregates of chlorite and magnetite. In the calc-silicate gneisses, the compositional banding is defined by millimetre- to centimetre-scale bands of alternating hornblende + plagioclase, and diopside + plagioclase + scapolite assemblages. The glass is alkali-lime-lead-silica and, when the paste was fired or cooled, wollastonite and diopside crystals formed within the glass fragments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It occurs with calcite, ettringite, wollastonite, larnite, brownmillerite, gehlenite, diopside, pyrrhotite, grossular, spinel, afwillite, jennite, portlandite, jasmundite, melilite, kalsilite and corundum in the limestone xenoliths. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The major constituents are similar to those of a basalt: orthopyroxene, olivine, plagioclase feldspar and diopside. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is associated with various mixed iron-titanium oxides, graphite, analcime, diopside, ilmenite, phlogopite and rutile. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. At relatively high temperatures, there is a miscibility gap between diopside and pigeonite, and at lower temperatures, between diopside and orthopyroxene. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The matrix consists of an extremely fine-grained groundmass with fine-to coarse-grained megacrysts of biotite, diopside, aegerine-augite, orthoclase, magnetite, apatite, and nepheline. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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