| Mineralogical Identification of China Clay
Deposits at Mulieh Area in Jaintia Hills, Meghalaya |
S.C. BARAL
Pages : 30-34
DOI : 10.1080/0371750X.1997.10804785 |
| Abstract |
| Kaolinised rocks occurring at the northern part of Mulieh
village of Jaintia Hills, Meghalaya were studied with a view to
identifying the possible mineralogical set up. The investigation
was confmed mainly on the crude as well as washed fractions of
the clay as obtained from systematic levigation of the crude by
gravity sedimentation technique. The study included the
finding out of the physical, chemical, rational, base exchange
capacity, pyrometric cone equivalent, petrographical, thermochemical
and XRD characteristics of all the fractions of the clay.
The results indicated that the clay in its crude form was primary
in origin and contained substantial amount of free
quartz, and was kaolinitic in character. On processing by
gravity sedimentation the clay was found to be almost free from
quartz and contained mineral kaolinite as the predominant
phase along with quartz, microcline, muscovite, illite and rutile
in minor amounts. |
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