Anybody know names of different kinds of rocks?

Question

Okay wats up i'm doing this science project where you have to name 12 differnent kinds of rocks and i really need help.


THANKS!

Answer 1

quartz
sandstone
mica
igneous
metamorphic
mineral
rock
sedimentary

Answer 2

Igneous rocks are formed from melted rock that has cooled and solidified. When rocks are buried deep within the Earth, they melt because of the high pressure and temperature; the molten rock (called magma) can then flow upward or even be erupted from a volcano onto the Earth's surface. When magma cools slowly, usually at depths of thousands of feet, crystals grow from the molten liquid, and a coarse-grained rock forms. When magma cools rapidly, usually at or near the Earth's surface, the crystals are extremely small, and a fine-grained rock results. A wide variety of rocks are formed by different cooling rates and different chemical compositions of the original magma. Obsidian (volcanic glass), granite, basalt, and andesite porphyry are four of the many types of igneous rock.

Sedimentary rocks are formed at the surface of the Earth, either in water or on land. They are layered accumulations of sediments-fragments of rocks, minerals, or animal or plant material. Temperatures and pressures are low at the Earth's surface, and sedimentary rocks show this fact by their appearance and the minerals they contain. Most sedimentary rocks become cemented together by minerals and chemicals or are held together by electrical attraction; some, however, remain loose and unconsolidated. The layers are normally parallel or nearly parallel to the Earth's surface; if they are at high angles to the surface or are twisted or broken, some kind of Earth movement has occurred since the rock was formed. Sedimentary rocks are forming around us all the time. Sand and gravel on beaches or in river bars look like the sandstone and conglomerate they will become. Compacted and dried mud flats harden into shale. Scuba divers who have seen mud and shells settling on the floors of lagoons find it easy to understand how sedimentary rocks form.

Sometimes sedimentary and igneous rocks are subjected to pressures so intense or heat so high that they are completely changed. They become metamorphic rocks, which form while deeply buried within the Earth's crust. The process of metamorphism does not melt the rocks, but instead transforms them into denser, more compact rocks. New minerals are created either by rearrangement of mineral components or by reactions with fluids that enter the rocks. Some kinds of metamorphic rocks--granite gneiss and biotite schist are two examples--are strongly banded or foliated. (Foliated means the parallel arrangement of certain mineral grains that gives the rock a striped appearance.) Pressure or temperature can even change previously metamorphosed rocks into new types.

Answer 3

You could name the twelve different rocks that will make up the foundation of the new Jerusalem.: jasper, sapphire, chalcedony, emerald, sardonyx, carnelian, chrysolite,beryl,topaz, chrysoprase, jacinth, amethyst (and gold and silver and turquoise, and diamonds, jade, and granite, and marble and flint for a few. )

Answer 4

The rocks that fall out of people's heads.

Answer 5

There are a dozen right here:

http://volcano.und.edu/vwdocs/vwlessons/lessons/Slideshow/Igrocks/Igindex.html

All I did was google "rocks and minerals" This was the first answer.

Answer 6

metamorphic, igneous, granite, marble, plutonic, sedimentary, limestone, dolostone, volcanic, mudstone, shale, siltstone, sandstones theres 13 go crazy lol

Answer 7

sand stone lava rock limestone marble granite soapstone you should be doing this on your own you know shell quartz

Answer 8

this probably wont help, but when i studied rocks, i just remembered the following names, but im not sure if thats what ur looking for:

-igneous
-sedimentary
-metamorphic
-bedrock
-quarts
-diamend

thats all I remember...Sorry!

Answer 9

Limestone,
Granite,
Marble,
Coal,
Shale,
Basalt,
Diorite,
Scoria,
Halite,
Sandstone,
coquina,
rhyolite

Answer 10

Granite, quartz, lime stone, just to help you a bit.