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Igneous is basically fresh out of a volcano. There are two types: rocks that got cooled slowly, and those that were cooled really fast. After a while, these rocks will break down into sediment, and will form into layers. Then the sediment will go through cementation, where they stick together. At that point, its sedimentary rock! (Like sandstone, in the Grand Canyon!)
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoIgneous rock forms when minerals are heated past their melting point to form magma (molten liquid rock). When cooled to solid state the rock formed is an igneous rock.
A sedimentary rock is either lithified from an accumulation of the weathered (preexisting rock broken down and fragmented by water, ice (frost), plant or bacterial activities, rapid change in temperature) or is a precipitate from evaporated sea water. The fragments created may be mud, sand, gravel or boulder size, all are sedimentary, that is weathered and redeposited or precipitated.
Wiki User
∙ 10y agoThe difference is in their method of formation. Sedimentary rocks are formed from the compaction and cementation of various sizes of rock particles, or by precipitation of minerals from solutions. Igneous rock forms from the solidification of magma or lava, and metamorphic rock forms from the effects on existing rock of temperature and/or pressure.
Wiki User
∙ 13y agoWell, sedimentary rocks are formed underwater and igneous rocks aren't. That's one reason.
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What kind of rocks form when other pieces of rock and matter gather into layers?
a sedimentary rock is formed. depending on which rocks were squished, you can get different rocks
Is sedimentary rocks formed the same way normal rocks are?
No, because a sedimentary rock is formed from pieces of other rocks.
How many types of rocks?
There are lots of different types of rocks in the world.
What types of minerals are clastic sedimentary rocks made of?
Clastic sedimentary rocks are made of broken pieces of preexisting rock that are compacted together. The mineral quartz makes up sixty percent of the clastic sedimentary rocks.
What is the primary basis for distinguishing different chemical sedimentary rocks?
The primary basis for distinguishing among different rocks in the chemical sedimentary rock group is their mineral composition. (p.150 Essentials of Geology 10th edition Classification of Sedimentary Rocks)
What makes igneous sedimentary and metamorphic rocks different from each other?
The way in which they were formed.
What makes the 3 types of rocks different?
sedimentary, metamorphic & igneous.
How are clastic sedimentary rocks different from organic sedimentary rocks?
they form
Are sedimentary rocks formed from fragments of other rocks chemical sedimentary rocks?
No. The rocks you describe are clastic or detrital sedimentary rocks.
What makes coal's composition different from that of all the other sedimentary rocks?
Coal is an organic sedimentary rock. It has conchoidal fracture. The composition is so different because coal, depending on age, contains mostly carbon as it is formed from plant cellulose. It is different because it is carbon, as opposed to a common mineral like other sedimentary rocks.
What rock makes up ten percent of all sedimentary rocks?
Limestone makes up ten percent of all sedimentary rocks.
What do sedimentary rocks form from?
Sedimentary rocks form from a few different things. Sedimentary rocks form from sediment is deposited out of air, ice, wind and gravity.
Most non clastic sedimentary rocks are made up of what?
other sedimentary rocks.
Why is coal different then other sedimentary rocks?
It is made of almost entirely of organic matter.
What rocks form from the sediments of the other rocks?
Sedimentary rocks.
What are sedimentary rocks shaped like?
No two sedimentary rocks are shaped the same, there are many different shapes
What contains different kind of fossils?
Sedimentary rocks
