How to Subtract ?

How to Subtract?

Meerschaum and similar minerals are mostly found in Eskişehir, Turkey. In addition, almost all of the commercially workable Meerschaum deposits are located in Eskişehir, Turkey.

Due to the reactions that lead to its formation, meerschaum is found underground in a wet state. This natural moisture held by its porous structure ensures the cleanliness of the meerschaum while it is in the soil, and its easy processing after extraction. Meerschaum, which is dried directly or after processing, becomes lighter at the rate of moisture it loses and gains a significant resistance.

In the fields located in the west, northeast and southeast of Eskişehir, metamorphic layers containing meerschaum in the form of scattered nodules are encountered between the surface and depths exceeding 300 meters. In order to obtain the stone, wells descending vertically from the surface are dug. When the easily distinguishable metamorphic layers in the soil are reached, horizontal tunnels following this layer are opened to look for meerschaum nodules. In some regions, the meerschaum layers are lower than the groundwater level. In order to extract the meerschaum from these places, the water must be drained first. In the extraction of meerschaum, manpower and personal experience and intuition gained over many years are used.

If meerschaum, which is very light and porous, is exposed to moisture or any gas after drying, it absorbs this moisture or gas to a great extent, and while it dries again, it retains the residues in this moisture or gas. Due to this basic feature, it is a very suitable pipe material, as well as a good absorber, filter, insulation and filling material in many industries. Meerschaum, which has been largely used in the production of the world's most precious pipes for about 300 years, has become an indispensable auxiliary material in the industry in parallel with the advancing technology.

Source: wikipedia.org

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