Khondalite

[1] It was named after the Khond tribe[2][1] of Odisha and Andhra Pradesh because well-formed examples of the rock were found in the inhabited hills of these regions of eastern India.

Khondalite is found in the Eastern Ghats between Vijayawada and Cuttack in India.

[2] but the term khondalite is also used to describe other rocks of similar composition found elsewhere in India as well as in Burma, Sri Lanka,[3] the northeastern Helanshan region[4] and the Inner Mongolia region of China.

[1] Khondalites are considered to be metasedimentary rocks formed during Archaean era.

According to Lewis Leigh Fermor, the khondalite and the related charnockite of the Eastern Ghat region were formed when the Eastern Ghat belt was faulted and buried.