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汉语拼音：shí yīng yán

由较纯的石英砂岩变质而成的岩石。变质后石英颗粒与胶结物合为一体，故质地坚硬致密，光泽较强，是良好的建筑材料。

• Quartztes and rock salt have the highest conductivities.

  石英岩和岩盐的热导率最高.

• A very hard, dense even - textured , silica - bearing sedimetary rock used in whetstones.

  均密石英岩非常坚硬, 致密, 结构均匀,含硅的沉积岩,用作磨石.

• The high walls of rock are made of weather - resistant quartzite.

  岩石的高墙制作是石英岩的坚固经历而幸存.

• Its typical quartzite topography features numerous natural spectacles.

  典型的石英岩山体成就了独特旖旎的自然风光,清澈的溪流宁静的山谷.

• Many raw materials for the quartzite.

  原料多为石英岩.

• There are types of non - metallic phosphorus, limestone, dolomite, quartzite, gypsum, clay, bentonite, and other minerals.

  非金属 类有磷 、 石灰岩 、 白云岩 、 石英岩 、 石膏 、 粘土 、 膨润土等矿种.

• The pyroclastic rock fragments comprise quartzite, schist, gneiss, basalt , andesite, rhyolite and quartz.

  火成岩的碎块成分主要为石英岩 、 岩 、 麻岩 、 武岩 、 山岩和流纹岩.

• The ribbon stones are consisted of different color pebbles such as agate, chalcedony, jasper and quartzite.

  纹石系由五颜六色的玛瑙 、 玉髓 、 碧玉、石英岩等卵砾所组成.

• The thin bedded siliceous - rocks include chert and depositional quartz with textures of oolite and pebble.

  矽质岩包括燧石和沈积石英岩,呈薄层状产出,沈积石英岩具鲕状、砾状结构.

• The dyes used are often vegetable or mineral origin - and therefore natural - like poppy, saffron and quartzite.

  染料大都来源于天然的植物和矿物,比如罂粟 、 红花和石英岩.