By: Retha Boswell
There are six general types of metamorphism established by geologists. Metamorphic rocks are created when sedimentary, igneous, or other metamorphic rocks are exposed to extreme heat, pressure, and occasionally chemical solutions. The types of metamorphism are distinguished by the factors involved and also the location...
How minerals are identified
By: Kimberly Napier
When coming across a rock, it may be difficult to determine what minerals, if any, make up the specimen. Identification is made easier if the characteristics of minerals areknown. These characteristics include color, luster, streak, cleavage, hardness, specific gravity and chemical composition. Color It is...
Facts about metamorphic rocks
By: Kimberly Napier
Metamorphic rocks occur when rocks go through a change. This change happens under high temperatures, pressure and, at times, chemical fluids. When a rock goes through metamorphosis, it changes its texture and even the mineral composition. Metamorphic rocks are changed through a solid state unlike...
Facts about metamorphic rocks
By: Lindsay Miller - 692589
A Metamorphic rock is an igneous or sedimentary rock that has changed from its original form to another completely different rock, through a process called metamorphism. Metamorphism involves the alteration of existing rocks into new rocks either with intense heat or intense pressure or a...
By: Zacharie King
Metamorphic rocks are ones that have undergone a change of form during a process called metamorphism. Metamorphic rocks tend to form deep in the Earth’s crust where immense heat and pressure alter the chemical composition of a rock creating a new type in the...
Understanding the rock cycle
By: Retha Boswell
The rock cycle describes the continuous series of changes that rocks undergo. The changes occur over millions of years, destroying old rocks and making new rocks. It is not as clear cut as the very simple water cycle, but is still easy to understand. There...
By: Francis Harris
Metamorphic rocks are those rocks which have been changed by metamorphic processes, typically heat and pressure increases due to one or more physical factors-such as plate tectonic movements of the Earth's crust-that create a new environment for the rock. The new environment makes the rock...
By: Zacharie King
Coal is an organic sedimentary rock due to the fact it is created from the remains of plant and animal material. Organic rocks form as the result of accumulating debris from plants and animals. Over time organic material will break down leaving mostly carbon behind...
Understanding mineral characteristics
By: Kimberly Napier
Minerals are identified by their characteristics. Some of these characteristics may describe its appearance, others its hardness. Color The color of a mineral is dependent on what chemicals are in the mineral itself. Many have a specific color; however, if a mineral is opaque it...
By: Zacharie King
Most sedimentary rocks are formed by layers of sediment accumulating on top of each other over time. Chemical sedimentary rocks form as the result of minerals in water. As water evaporates it leaves behind these mineral deposits in a crystallized form. Over time these deposits...

 

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