Question

how do minerals occur in igneous and metamorphic rocks

Answer 1

1) Minerals occur in metamorphic and igneous in crevices, faults, joints and cracks.
2) The smaller occurrence are called veins and larger occurrence are called lodes.
3) They are formed when minerals in molten and gaseous forms are forced upward through cavities towards the earth surface. They cool and solidify as they rise.
Examples :- Tin, Copper, Zinc, Lead, etc

Answer 2

In igneous and metamorphic rocks:-


i]   The smaller occurrences are called veins and the larger occurrences are called lodes.


ii]   They are usually formed when minerals in liquid/molten and gaseous forms are forced upwards through cavities towards the earth’s surface.


iii]    Examples: tin, copper, zinc, lead, etc.