一种粗粒的，深成的或侵入的长英质成分的火成岩，含石英、长石和云母的粗大晶体。
A coarse-grained, plutonic or intrusive igneous rock of felsic composition having large crystals of quartz, feldspar and mica.
含金性不同的微斜长石在偏振光条件下的可见光吸收光谱，与其不同程度地含有过渡金属离子密切相关。
Visible absorption spectra of microclines varying in gold content under the polarized light are closely related to the content of transition metal ions.
在某些富锂、氟含稀有金属花岗岩的石英和钾长石斑晶中常见（半）雪球结构。
The snowball texture in quartz and K_feldspar phenocrysts is commonly observed in some Li_F enriched and raremetal_bearing granites.
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