Cite this article:
DP Kuity (1988). Genesis of the inclusions in mica from pegmatite suite of Bihar mica belt, Bihar. Journal of Ravishankar University (Part-B: Science), 1(1), pp. 87-90.
Genesis of the inclusions in mica from pegmatite suite
of Bihar mica belt, Bihar
DP Kuity
Department of Geology, Ravishankar
University, Raipur, M.P.
MS received 11 April .88; revised 26 July 88
Abstract. The inclusions
of quartz, felspar and towmaline occur in the white and ruby mica
within the pegmatites of Bihar Mica Belt. These are intimately
associated with smaller cracks but do not show any relation with relatively bigger cracks. Quartz inclusions are massive, irregularly arranged and absence of flat surfaces suggests non-influence of platy nature of mica. Felspar inclusions are massive and acicular (radiating nature).
The felspar and elongated tourmaline crystals (0.5 to 2mm) are irregularly arranged and do not show any sympathetic relation with the foliation planes-of mica. This suggests a growth under restricted conditions. The present study reveals that the inclusion forming materials were present within
the mica. These inclusions are neither older nor formed from the mica but crystallized almost at
the end of crystallization
i.e.,
coeval with the mica.
keywords. Inclusions; mica.
NOTE: Full version of this manuscript is available in PDF.