قلم سختی سنج موهس زمین شناسی سختی سنج سنگ

قلم سختی سنج موهس زمین شناسی سختی سنج سنگ

قلم سختی سنج سنگ قلم سختی موهس

قلم سختی سنج ۰الی ۱۰

قلم سختی سنج سنگ ۱۰سر

فروش انواع قلم سختی آنالوگ و دیجیتال ساخت کشور آلمان آمریکا

جهت دریافت کاتالوگ مشخصات و سایر محصولات و دستگاهها  تماس حاصل فرمائید.۶۶۱۲۶۴۸۳ (۱۲خط ویژه)

قلم سختی سنج موهس زمین شناسی سختی سنج سنگ

The Mohs scale of mineral hardness

is based on the ability of one natural

sample of mineral to scratch another

mineral visibly. The samples of m

atter used by Mohs are all different

minerals. Minerals are pure substances found in

nature. Rocks are made up of one or more

minerals As the hardest known naturally

occurring substance

when the scale was designed,are at the

top of the scale. The hardness of a

material is measured against the

scale by finding the hardest

material that the given material can scratch, and/or the softest material that can scratch the given material. For example, if some material is scratched by apatite but not by fluorite, its hardness on the Mohs scale would fall between 4 and 5.”Scratching” a material for the purposes of the Mohs scale means creating non-elastic dislocations visible to the naked eye. Frequently, materials that are lower on the Mohs scale can create microscopic, non-elastic dislocations on materials that have a higher Mohs number. While these microscopic dislocations are permanent and sometimes detrimental to the harder material’s structural integrity, they are not considered “scratches” for the determination of a Mohs scale number.

The Mohs scale is a purely For example, (9) is twice as hard as(8), but diamond (10) is four times as hard as corundum. The table below shows the comparison with the absolute hardness measured by awith pictorial examples.

The Mohs scale of mineral hardness is a  that characterizes the scratch resistance of various  through the ability of a harder material to scratch a softer material. It was created in 1812 by the German  and is one of several definitions of  some of which are more quantitative The method of comparing hardness by seeing whic

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