Question

what are the minerals modes of oocurence ? Discuss 150 wards

Answer 1

Hey ,

Minerals occurs mainly in these forms :-

01 ) In metamorphic and igneous rocks

>> found in crakes .

>> smaller occurance is known as "veins".

>> larger occurance is known as " lodes".

>> found in liquid or molten state .

>> ex :- tin , copper , zinc , lead , etc .

02 ) In sedimentary rocks

>> occurance in beds or layers .

>> formed of decomposition or accumulation .

>> ex :- coal , some forms of iron , gypsum , potash , petroleum , etc

03 ) By decomposition of surface rocks

>> ex :- bauxite .

04 ) Alluvial deposits

>> in sandy or valley region

>> they are known as placer deposits

>> ex :- gold , silver , platinum

05 ) Ocean occurance

>> in beds of ocean

>> ex :- common salt , magnesium , bromine

hope it helps

Answer 2

Mode of Occurrence of Minerals. Minerals are generally found in "ores", which is actually an accumulation of any mineral mixed with other elements. To obtain a pure mineral, the it has to be separated from its ore. Minerals generally occur in the cracks, crevices, faults and joints of the igneous and metamorphic rocks.Mineral - Occurrence and formation: Minerals form in all geologic environments and thus under a wide range of chemical and physical.usually formed when minerals in liquid/molten and gaseous forms are forced upwards through cavities towards the earth's surface. Examples: tin, copper, zinc, lead, etc. In sedimentary rocks: In these rocks, minerals occur in beds or layers