What type of rock is most similar to the material formed when a saltwater solution evaporates and cements quartz sand grains together? A. An extrusive igneous rock. B. An intrusive igneous rock. C. A sedimentary rock. D. A metamorphic rock. Correct Answer C. A sedimentary rock. Explanation...
Quartz is a hard, crystalline mineral composed of silicon dioxide (SiO₂). Quartzis one of the most common mineral on the face of the Earth. It is found in nearly every geological environment and is at least a component of almost every rock types: igneous, metamorphic, and sedimentary. I...
(2)The storage space of sandy rocks is primarily made up of feldspar dissolution pores and residual intergranular pores, which are held together by rigid grains. The sandstone with high feldspar and quartz mineral content, low carbonate cementation, low clay mineral content, and a large ...
Granite is a coarse-grained, light-colored, intrusive igneous rock that contains mainly quartz, feldspar, and mica minerals. The specimen above is about two inches (five centimeters) across.Peridotite is a coarse-grained intrusive igneous rock that is composed almost entirely of olivine. It may ...
Arkose is a raw, coarse-grained sandstone deposited very near its source that consists ofquartzand a significant proportion of feldspar. Arkose is known to be young because of its content offeldspar, a mineral that usually degrades quickly into clay. Its mineral grains are generally angular rathe...
13 Different Types of Purple Rocks and Minerals 1. Amethyst Amethyst is a beautiful and captivatingpurple variety of the Quartz mineral. It has captured the attention of many, and you might find yourself enchanted by its various shades ranging from light lavender to deep, intense royal purple. ...
Arkose, a sandstone rock by nature, is generally characterized by a substantial amount (at least 25%) of feldspar present in the rock along with quartz and sometimes mica. One other significant characteristic of arkose rocks is that it carries slight amounts of calcite whichreacts with hydrochlo...
Since these rocks are sedimentary, they are stratified. Quartz and feldspar make up the majority of them. They come in various colors, including white, grey, red, buff, brown, yellow, and dark grey. The specific gravity ranges between 1.85 and 2.7, and the compressive strength is between 20...
In the western Yangtze Block, widespread Mesoproterozoic to Neoproterozoic rocks are the key to understanding the Precambrian tectonic-magmatic evolution of the region. However, their petrogenesis and tectonic setting are still controversial. In this paper, zircon U-Pb ages, Sm-Nd isotopic and whole-...
Gold prospectors learned that gold could be found in areas where these green rocks were present. This is because mariposite is an ore of gold.Quartzite is a non-foliated metamorphic rock that is produced by the metamorphism of sandstone. It is composed primarily of quartz. The specimen above...