Aplite (/ ˈ æ p l aɪ t /) is an intrusive igneous rock that has a granitic composition. Aplites are fine-grained to aphanitic (without grains visible to the naked eye) and may consist of only quartz and feldspar or the term may refer to any leucocratic (pale-coloured) minor intrusion of that grain size. [ …

Aplite, any intrusive igneous rock of simple composition, such as granite composed only of alkali feldspar, muscovite mica, and quartz; in a more restricted sense, uniformly fine-grained (less than 2 millimetres [0.08 inch]), light-coloured, intrusive igneous rocks that have a characteristic

2015年9月1日 · Pegmatites are treated in this study together with aplitic rocks, which are compositionally similar to pegmatites but strikingly different from them by their fine-grained texture.

A light-coloured, igneous rock characterized by a medium-grained (usually 0.1-2 mm) saccharoidal (i.e., aplitic) texture. Aplites may range in composition ...

2015年12月9日 · Aplite is a fine-grained igneous rock. Most aplites are granitic in composition — chief constituents are feldspars and quartz. Aplite is associated with granitic rocks that are similar in composition and they may be associated with pegmatites.

细晶岩(aplite) 以较小岩脉产出的浅色脉岩，多侵入于具成因联系的岩体和其周围的岩石裂隙中。 矿物成分与其相应侵入岩的浅色矿物组成相似，主要由浅色矿物组成，深色矿物很少或无，仅偶尔出现微量的黑云母和角闪石。

Aplite is a medium- to fine-grained rock (average grain size usually 1.0 mm or less) with a characteristic equigranular, sugary (saccharoidal) texture. The origin of the term is uncertain, but the name may have been used as early as 1800.

Aplite is defined as a light-colored fine-grained granitic rock composed mainly of quartz and alkali feldspar, crystallizing in veins and dykes within intrusive bodies as late residual melts. You might find these chapters and articles relevant to this topic.

aplite，英语单词，主要用作名词，作名词时译为“半花岗岩； [岩] 细晶岩（等于haplite）”。

因此，细晶岩如单独应用时，一般是指花岗细晶岩（granitic aplite），其他按其成分不同：含辉长石的称为辉长细晶岩（gabbro aplite）；含闪长石的称为闪长细晶岩（diorite aplite）等。