Namkum block
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Namkum block
Namkum block
Namkum block is one of the 18 administrative blocks of Ranchi district, Jharkhand state, India. Geologically, it belongs to the archean age of granite gneissic formation.Other rocks are amphibolite, Khondalite,mica schist etc. It belongs to Khijri Assembly Constituency....

 is one of the 18 administrative blocks of Ranchi district
Ranchi District
Ranchi district is one of the twenty-four districts of Jharkhand state in eastern India. Ranchi city, the capital of Jharkhand state is the district headquarters.As of 2011 it is the most populous district of Jharkhand .-Origin of name:...

, Jharkhand
Jharkhand
Jharkhand is a state in eastern India. It was carved out of the southern part of Bihar on 15 November 2000. Jharkhand shares its border with the states of Bihar to the north, Uttar Pradesh and Chhattisgarh to the west, Orissa to the south, and West Bengal to the east...

 state
States and territories of India
India is a federal union of states comprising twenty-eight states and seven union territories. The states and territories are further subdivided into districts and so on.-List of states and territories:...

, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. Geologically, it belongs to the archean age of granite gneissic formation.Other rocks are amphibolite
Amphibolite
Amphibolite is the name given to a rock consisting mainly of hornblende amphibole, the use of the term being restricted, however, to metamorphic rocks. The modern terminology for a holocrystalline plutonic igneous rocks composed primarily of hornblende amphibole is a hornblendite, which are...

, Khondalite,mica schist etc. It belongs to Khijri Assembly Constituency.
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