chamosite


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Related to chamosite: clinochlore
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Noun1.chamosite - a greenish grey or black silicate of iron and aluminum
iron ore - an ore from which iron can be extracted
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The ore microscope observation shows that the matrix mineral components in the bauxite ores are cryptocrystalline diaspore, hematite, ferrohydrite, kaolinite, anatase, vanadium titanomagnetite and chamosite (Figs.
Authigenic silicate minerals, where present in lower strata, are invariably represented by glauconite with shifts to chamosite only in intervals where the rock is lutitic.
The lithofacies-2 was formed due to the deposition of shale / clays along with chamosite in fresh water lagoon or delta front basin.
However, quartz, feldspar (such as albite/ anorthite), several clay minerals (such as micas and illites, chamosite, chlorites, kaolinite and biotite), bayerite and calcite were common in sediment samples.
Some of the sandstone units are pale green, a result of the presence of chamosite and chlorite (Ranger et al.
Chamosite forms as platy dark green to black microcrystals inside breccia cavities.