Monthly Archive: November 2013

Nature made marble is a rock created by a metamorphism process of sediment carbonate rocks, such as limestone and dolomite rocks.  When this change occurs, a recrystallization of the original rock occurs. The marble name was created from the Greek…
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Schists are a group of metamorphic rocks which are medium to coarse-grained and of a fissile nature, meaning that at least one of the minerals in the rock crystallizes in platy form.  Because of this, schists will split easily along…
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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…
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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…
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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…
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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…
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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…
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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…
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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…
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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,…
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