Slate pencils are manufactured in India.
The slate pencil industry is the main industry of the Mandsaur district.
Mandsaur Slate Pencil Corporation is considered as one of the foremost manufacturer and supplier of Natural Slate Pencil in India.
The slate pencils are made in India, specifically in Southern India, from a sedimentary rock called shale.
Slate pencils in India, normally 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.
Eating slate pencils is not among the healthy habits and thus consider consulting a doctor before ingesting chalks.
If you wish to know some benefits of eating slate pencil, the following could be considered: Slate pencils contain calcium, which strengthens bones.
It also removes the enamel coating from teeth.
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism.
It is the finest grained foliated metamorphic rock.
Slate is a metamorphic rock of sedimentary origin.
Is mainly composed of quartz, sericite and minerals of the chlorite group.
Has been used as a construction material since the ancient Egyptians.
Its color depends on the mineral structure and size of the mineral grains that define its composition.