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Which two rocks are made from rounded grains?
Conglomerate and sandstone are rocks made from rounded grains. Conglomerate consists of larger, rounded gravel-sized particles cemented together, while sandstone is composed of smaller, rounded sand-sized grains cemented together.
Rocks are made of one or more of these?
Rocks are composed of differing combinations of thousands of naturally occurring minerals--or pieces of other rock particles cemented together--or in some cases, lithified organic matter.All rocks are composed of some form of minerals. The exact type of rock and their specific appearance is determined by the elements that are combined with these minerals.
What are sedimentary rock composed of older rocks called?
Sedimentary rocks composed of older rocks are called "conglomerate" or "breccia." These rocks form when fragments of older rocks are compacted and cemented together to create a new rock.
Which two rocks are primarily composed of a mineral that bubbles with acid?
The two rocks that are primarily composed of a mineral that bubbles with acid are limestone and marble.
It is generally true that igneous rocks are composed of what type of mineral?
igneous rocks are composed of silicate minerals
Rocks are usually composed of to or more what?
minerals
Which rock is usually composed of several different minerals.?
The majority of rocks are composed of a variety of minerals. Monomineralic rocks are rare.
What rock are usually composed of?
Minerals! Rocks are made of minerals
What best describes the sound usually made when metamorphic rocks hit together?
cheeng
How many rocks in an element?
Rocks are composed of minerals which are composed of elements.
Which of the following is composed of weathered rocks and decomposed organic material from dead plants and animals?
The answer is Soil!
Is the following sentence true or false Intrusive rocks have similar crystals than extrusive rocks?
Rocks usually contain a mixture of minerals.
How are minerals and rocks the same?
Rocks are composed of minerals. Minerals are composed of elements.
Is mineral made out of rocks?
No. But rocks are composed of minerals.
Volcanoes are composed of what rocks?
http://en.wikipedia.org/wiki/Volcano volcanoes can be composed of a variety of igneous rocks.
Which two rocks are made from rounded grains?
Conglomerate and sandstone are rocks made from rounded grains. Conglomerate consists of larger, rounded gravel-sized particles cemented together, while sandstone is composed of smaller, rounded sand-sized grains cemented together.
mantle is composed of these rocks?
ferro magnesium silicate rocks
