By: Mari Mckee
Marble is a metamorphic rock used in the most beautiful and famous sculptures and structures in the world. Sedimentary carbonate rocks, most commonly limestone and dolomite, become marble through the process of metamorphism. Metamorphism is the process of heat and pressure changing one type of...
Metamorphic rocks: Marble
By: Jose Juan Gutierrez
Marble is a metamorphic rock formed by the recrystallization of sedimentary rocks, such as limestone or dolostone. Metamorphic rock is created by the Earth’s internal forces, including temperature, pressure and plate tectonics. Marble is formed when it is chemically or physically modified by any...
By: Mari Mckee
Quartzites are metamorphosed sedimentary quartz sandstones. Deep in the earth, rocks are heated by molten. Pressure comes from layer upon layer of rocks. Heat and pressure may cause chemical changes within the parent rock. The parent rock, sandstone, now becomes a different rock, quartzite. Erosion...
Metamorphic rocks: Marble
By: Anja Poulsen
Marble an abundant type of stone that has many uses and applications in building, decoration and art. It is prized for its beauty and shine. In fact, the word “marble” comes from the Greek “marmaros”, meaning “shining stone”. It has been highly...
Metamorphic rocks: Phyllite
By: Jennifer Foster
The study of metamorphic rocks is extremely fascinating for people of all ages. From professional geologists to children who monger rocks, it is always interesting to study and see how one type of rock can become another under the right circumstances. Phyllite is one such...
Metamorphic rocks: Quartzite
By: Anja Poulsen
Quartzite is a non-foliated metamorphic rock formed from sandstone and is primarily made up of quartz. Non-foliated means that quartzite does not display the banding and layers of other kinds of metamorphic rocks like slate or schist. When cut, the break will slice through the...
Metamorphic rocks: Slate
By: Cicely Richard
Slate is a metamorphic rock formed by shale-like sedimentary rocks made of clay or volcanic ash. According to Geology.com, slate is a fine-grained and layered rock that has many uses in construction because of its durability and appearance. Like other metamorphic rocks, slate’s...
Igneous rocks: Peridotite
By: B. J. Deming
Geologists describe silicate rocks that form out of magma as igneous, from the Latin word for “fiery.” That’s a dramatic origin story in and of itself, but one such rock, peridotite—named after peridot, a semiprecious gem and the August birthstone—really...
Metamorphic rocks: Marble
By: Cicely Richard
Marble is a metamorphic rock consisting of course crystals primarily from limestone and dolomite, according to the Georgia State University Department of Physics & Astronomy. The department states that pure marble composed of calcite is white. This versatile rock has been used for centuries by...
Metamorphic rocks: Phyllite
By: Anja Poulsen
Phyllite is a fine-grained, foliated metamorphic rock. The name "phyllite" is derived from the Latin, meaning “leaf-stone”. The name probably refers to its usual green color and its ability to be flaked into thin sheets. Phyllite has a marked fissility, meaning that the rock...

 

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