how Slate pencil are made up of
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Slate pencils in India(more specifically southern India) are made from a type of sedimentary rock known as Shale, which is composed of mud that is a mixture of clay minerals (kaolinite,montmorillonite and illite) and small quantities of other minerals especially quartz and calcite.
rujupupulwadgm99:
it is not good for eating na
no
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pencil is made up of granide rock which is slippery and conductive in nature
warning
don't put sharp pencil at two end inside board by touching other sharp end ok
slate is also made of fine grained metamorphic rock ok
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