Many other naturally occurring amino acids exist, and the structures of a few of these are displayed below. Some, such as hydroxylysine and hydroxyproline, are simply functionalized derivatives of a previously described compound. These two amino acids are found only in collagen, a common structural protein. Homoserine and homocysteine are higher homologs of their namesakes. The amino group in beta-alanine has moved to the end of the three-carbon chain.
Following are examples of three metamorphic rocks and a list of their uses. Marble is a metamorphic rock that is used to make floor tiles, counter tops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings.orundum, another metamorphic mineral, â¦ is used for abrasives Kyanite and its polymorphs-for ceramics Graphite-pencils Many economic deposits of gold, copper, tungsten and iron occur in metamorphic rocks. Asbestos is a metamorphic mineral which was formerly used for insulation. 25 people found this useful.
18. 19. 20 Finally, for low-grade metamorphic rocks that retain primary textures orstructures, the adjective meta can be used in front of a sedimentary, volcanic origneous rock name (e.g. metatuff, metachert, metadiorite, metabasalt, metagabbro,metagraywacke, etc.) as a rock name.leavage is usually defined byaligned fine-grained mica or chlorite; it is therefore most common inaluminous, low-grade metamorphic rocks. There are a myriad of cleavagetypes and adjectives used to describe them, but we will concern ourselves withonly two, slaty cleavage and crenulation cleavage.