Metamorphic rocks are the third major type of rock, the other two being igneous and sedimentary. Because of how they are formed, metamorphic rocks constitute a great deal of the bedrock in Earth's crust. Many precious materials, such as marble and many types of gemstones, including diamonds, ...
metamorphic schistose rockspore size distributionpore volumeporosityIf a rock is porous in nature, the genetic complexity associated with its petrofabric makes it difficult to predict its behavior. Here, a comprehensive study of the porous nature, physical and......
Investigate the various properties and characteristics of rocks. Discover how rocks vary in color, texture, shape, size, luster, and hardness...
A normal fault means that the land is being pulled away from itself and some of the land has shifted down because of the pull of gravity. What are normal and reverse faults? A normal fault is a break in the rock caused by pulling away of the rock so that one side slips below the ...
Pink Marble: A piece of pink marble about four inches (ten centimeters) across. The pink color is most likely derived from iron. Image by NASA. ADVERTISEMENT What is Marble? Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. It is...
Clay minerals such as kaolinite, smectite, chlorite, micas are main components of raw materials of clay and formed in presence of water. A large number of clays used to form the different structure which completely depends on their mining source. They ar
Blue kyanite crystals: A very common habit of kyanite is blue bladed crystals. Image by Aelwyn, displayed here under a Creative Commons license. What is Kyanite? Kyanite is a mineral found mainly in metamorphic rocks. It most often forms from the high-pressure alteration of clay minerals ...
Metamorphic rocks are formed when an igneous, sedimentary, or early form of metamorphic rock is originally transformed by high pressure, heat, or the intrusion of fluids. This heat and pressure can form gemstones such as aquamarine, emerald, jade, and ruby. Crystal is a mineral that stands on...
It is a metamorphic rock that is formed from the alteration of other rocks, such as Serpentine or Amphibole. Nephrite Jade is found in many parts of the world, including North America, South America, Australia, New Zealand, and Asia. ...
Then we will provide a summary of equivalently isotropic Poisson's ratios for common crystalline rocks with particular focus on the dependence of the Poisson's ratios of igneous and metamorphic rocks on their constituent minerals. Finally, our emphasis is placed on the auxetic effect of quartz-...