Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Considerable amount of investigation has recently been done on the minerals commonly present in the charnockites of India. In this paper a very concise account is given of the optical properties and chemical composition of orthopyroxene, clino-Pyroxene, hornblende, biotite, garnet, plagioclase, and potassium feldspars. Mention is made of some of the minor minerals such as monazite, magnetite, ilmenite, pyrites, Pyrrhotite, apatite, zircon, spinel, and sapphirine.

The work done on the chemistry of coexisting pyroxenes, and the cation distribution in the coexisting silicate minerals is also briefly reviewed.


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