Sedimentary, Igneous, and Metamorphic Rocks by Ryan Almodovar

Sedimentary rocks can be found in deserts, oceans, lakes, rivers, and seas. They are formed when materials like mud, pebbles and sand cement. When they cement, overtime, they create layers, and eventually, make sedimentary rocks.

Sandstone (or sometimes known as arenite) is a clastic sedimentary rock that is made from mostly sand composed of sand sized rocks, such as granite and feldspar.

You can find sandstone in the gobi desert, because sandstone is made from sand and other small mineral pieces.

Limestone, a sedimentary rock, mainly composed of mainly primarily of calcium carbonate (CaCO3) in the form of mineral calcite. It would usually form in warm shallow waters.

You can find limestone almost everywhere that an ocean has ever existed, liker the indian ocean.

Conglomerate rocks, a sedimentary rock, can be found near ocean shores or in rivers, because they are very large, so they can only be moved by the ocean. Due to this, they also collect many other small rock particles on the outside of the rock.

conglomerate rocks can be found in the nile river, as well as any other river, BECAUSE THEY are generally found in, or near water because they can only be naturally moved by water erosion.

Extrusive Igneous Rocks can be be cooled from lava and magma very rapidly, resulting in a rock with little to no crystals. Intrusive Igneous Rocks are cooled very slowly underground, resulting in a many crystals. These minerals can be identified by their color, texture, amount of crystals, and their hardness and streak.

Pumice, an igneous rock, has many air pockets because they were made form air and gas bubbles created during rapid cooling.

Italy is the biggest producer of pumice in the world. in the u.s., oregon, california, and arizona are some of the biggest producers of pumice.

Andesite, an igneous rock, are commonly found in the continental crust formed after an oceanic plate melts producing a source of magma.

andesite is named after the andes mountain, where it is very commonly found.

Gabbro, and igneous rock, is made intrusively, which means that it was made slowly underground, which is one of the reasons as to why it has so many crystals.

gabbro is formed INTRUSIVELY, inside of magma beneath the earths surface, which leads to crystals being formed on the rock.

Metamorphic rocks are one of the last steps in the rock cycle. They are formed when rocks become heated up from magma, so they get chemically changed, resulting in a new rock

Marble, a metamorphic rock, usually has calcite, dolomite crystals, and aragonite , which are usually key components in marble. Marble is also used in things like counters, or in other cases, the entire Taj Mahal.

One of the major producers of marble in the unites states. Most of the Alabama marble is found in the middle-eastern parts of the state, such as Talladega, Bibb and Calhoun.

Migmatite, a metamorphic rock, is made from layers and is very rich in magnesium, as well as other minerals.


Created with images by James St. John - "Diatomite"

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