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Minerals And Rocks
Question
Discuss the characteristics of Mica and Olivine .
Solution
The characteristics of Mica and Olivine are discussed below:
Mica-
(i)It comprises of potassium, aluminium, magnesium, iron, silica etc.
(ii)It forms 4 percent of the earth’s crust.
(iii)It is commonly found in igneous and metamorphic rocks. It is used in electrical instruments.
Olivine-
(i)Magnesium, iron and silica are major elements of olivine.
(ii)It is used in jewellery.
(iii)It is usually a greenish crystal, often found in basaltic rocks.
Mica-
(i)It comprises of potassium, aluminium, magnesium, iron, silica etc.
(ii)It forms 4 percent of the earth’s crust.
(iii)It is commonly found in igneous and metamorphic rocks. It is used in electrical instruments.
Olivine-
(i)Magnesium, iron and silica are major elements of olivine.
(ii)It is used in jewellery.
(iii)It is usually a greenish crystal, often found in basaltic rocks.
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Some More Questions From Minerals And Rocks Chapter
What is a sedimentary rock ?
Write some main sedimentary rocks.
Which important minerals are found in metamorphic rocks?
State one example of hard rock and soft rock.
The process of physical and chemical changes affecting sediments during their conversion into solid rocks.
Structure in metamorphic rocks in which minerals are drawn out into long, thin pencil like objects all in parallel alignment.
The smooth planer surfaces of weakness along which minerals have pronounced tendency of split.
Few large crystals imbedded into material of smaller crystals.
What do you mean by rocks ? Name the three major classes of rocks.
What is an igneous rock? Describe the method of formation and characteristics of igneous rock.
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