闪长岩一种黑色花岗岩的纹理的结晶质火岩石，富有斜长石，含有少量石英。
Any of various dark, granite - textured, crystalline rocks rich in plagioclase and having little quartz.
含金矿脉主要由中等-最大微斜长石、石英、黄铁矿和微晶自然金等矿物组成。
The gold-bearing ore veins consist of microcline from intermediate to maximum, quartz, pyrite and microcrystalline natural gold.
月球花岗岩碎屑的主要矿物为石英、钾长石和钙质斜长石，具花斑状结构；
Major minerals of lunar granitic clasts are quartz, K-feldspar and calcic plagioclase with granophyric intergrowths.
导致活化能取值偏低的影响因素包括低温阶段的加热时间、K-长石的纯度和部分斜长石、石英的混入等。
The affecting factors of low value by activation energy determination include heating duration in low temperature stage, pureness of K feldspar and mixture of some plagioclase, quartz et al.
讲稿详细地介绍了火成岩矿物，如：石英及它的同构异形体、柯石英、鳞石英、方石英、长石、斜长石、似长石、辉石、闪石等矿物。
The notes describe the common minerals such as quartz and its polymorphs, coesite, tridymite and cristobalite, feldspar, plagioclase, feldspathoids, pyroxenes, amphiboles, etc.
花岗质岩石主要由石英、斜长石和碱性长石组成，并因此具有较低的密度。
Granitic rocks mainly consist of quartz, plagioclase and alkaline feldspar and hence have lower densities.
花岗质岩石主要由石英、斜长石和碱性长石组成，并因此具有较低的密度。
Granitic rocks mainly consist of quartz, plagioclase and alkaline feldspar and hence have lower densities.
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