Sentence examples for mainly of quartz from inspiring English sources

Sandstone, composed mainly of quartz, is an important building stone.

Beach sands in temperate latitudes consist mainly of quartz, some feldspars, and a small percentage of heavy minerals.

The sand was able to survive its many transformations — from mountain and beach to stone and savanna — because it is composed mainly of quartz.

Porphyritic granite is composed mainly of quartz, biotite and larger-grained potassic feldspar.

The extension veins are composed mainly of quartz and minor calcite.

Figure 6c reveals that the sandstone is composed mainly of quartz grains embedded in coarse crystalline calcite cement.

A crystal oscillator consists mainly of a quartz crystal and an IC that controls the oscillation circuits, and is applied to high precision communications products, requiring high frequency accuracy.

The results indicate that the LF shales mainly consist of quartz and clay minerals.

Previous study (Choi et al. 2007) revealed that the sand materials mainly consisted of quartz.

As shown in Fig. 12, the quartzite aggregates mainly consisted of quartz.

Table 1 shows that MIL is nearly pure quartz, while ATD is mainly comprised of quartz grains coated with secondary phases.