Sandstone and Quartzite
Sandstone and quartzite are two different types of sedimentary rocks found across the world. They are both particles of sediment that are cemented together, but they have a few key differences that set them apart. Sandstone is made up of clastic particles that are of a diverse range, while quartzite is primarily composed of microscopic quartz crystals. Sandstone is usually buff colored, while quartzite often appears white or gray. The hardness of the two stones varies greatly, with quartzite being much harder than sandstone.
Sandstone is a sedimentary rock made up of clastic sediments that have been compacted and cemented together. The clastic particles can range from tiny grains to larger grains, including quartz and feldspar. The most common cementing agent for sandstone is calcium carbonate. It is usually buff colored, but can range from reddish hues to gray. Sandstone can form from beach, river, or Desert sediments. The sandstone is mechanically weathered, and can be easily eroded by water, wind, and ice. The grains of sandstone are much wider than those of quartzite, usually about 0.1-2.0mm.
Quartzite is also a sedimentary rock but is mostly composed of quartz crystals. The quartz is a much harder mineral, which is why quartzite is much harder than sandstone. It is usually gray or white in color, but can range to other light hues like pink or yellow. Quartzite forms when quartz sandstone is subjected to large amounts of pressure and heat. The cementing agent of quartzite is silica, which bonds the quartz crystals together. Quartzite is mostly found in mountain ranges or regions that were once deep tropical oceans. The grains of quartzite are much smaller, usually about 0.001-0.03mm.
Sandstone and quartzite have a few similarities. They are both sedimentary rocks that are formed from pressure and cementing of sediments. They are also both found across the world in various areas. However, they have many differences, especially in the color and size of their grains, as well as their hardness. Sandstone is usually buff colored, much softer, and has larger grain sizes, while quartzite is usually white or gray, much harder, and has smaller grain sizes.
Both sandstone and quartzite have their uses. Sandstone is often used for construction, such as in buildings and monuments. It is also used in making sculptures and as a decorative material. Quartzite is often used in roofing materials, kitchen counter tops, and other interior designs. It is also popular as a gemstone in jewelry.
In conclusion, sandstone and quartzite are two sedimentary rocks that differ in composition, color, and hardness. Sandstone is often buff colored, softer, and has larger grain sizes, while quartzite is usually white or gray, harder, and has smaller grain sizes. Both have their uses in construction, sculpting, and interior design, as well as in jewelry.
