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Rocks and Minerals
lava rocks
If you find a lava rock that means a valcano ,might be close by.Igneous rocks are formed when the magma cools and solid fires, it may do this above of below the earth. Magma can be forced into rocks, blown out of volcanic explosions or forced to the surface of lava. you can find lava rocks on snowy mountain like one that is named,Mount st.Helens, which is fare away from here.
lava rocks
How Rocks Form!
Rocks can form it lots of different way's like how sedimentary rocks are formed through the gradual accumulation of sediments. For example, sand on a beach or mud on a river bed and Igneous rocks are rocks which have crystallized from a melt or magma.Rrocks are caused to form by most Earth Materials, rocks are created and destroyed in cycles. Most of the earth's crystals were formed millions of years ago. Crystals form when the liguid rock from inside the earth cool and hardan.
different types of rocks
different types of rocks
Sedimentary, metamorphic, and igneous are the main different rocks of the rock system. Sedimentary rocks are formed from particles of sand, shells, pebbles, and other fragments of material. Together, all these particles are called sediment. The three main types, or classes, of rock are sedimentary, metamorphic, and ingneous. the differences among them have to do with how they are formed.
Metamorphic rocks
Metamorphic rocks are a result of a transformation of a pre-existing rock. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes. Examples of these rock types include marble, slate, gneiss, schist.
Metamorphic rocks
Sedimentary rocks
Sedimentary rocks are formed by the accumulation of sediments. There are three basic types of sedimentary rocks. Clastic sedimentary rocks such as breccia, conglomerate, sandstone, siltstone, and shale are formed from mechanical weathering debris.
Sedimentary rocks
Igneous rocks
Igneous rocks are erupt onto the surface, where they cool quickly to form small crystals. Some cool so quickly that they form an amorphous glass. These rocks include andesite, basalt, obsidian, pumice, rhyolite, scoria, and tuff.