Answer:
A mineral scratches a knife blade but does not scratch a streak plate. The hardness of the mineral between 5.5 and 7.
Explanation:
A material's ability to tolerate localized irreversible and plastic deformation, cutting, scratching, and even twisting is referred to as its hardness. Contrary, wear resistance will increase as hardness increases. Hard materials, in contrast, are challenging to shape-change.
The capacity of one mineral to scrape another mineral is a measure of hardness. A mineralogist from Germany named GeFederick Mohs developed a hardness scale that used a group of 10 reference minerals.Compounds containing calcium as well as magnesium, as well as a number of other metals, contribute to hardness. Temporary hardness, as well as permanent hardness, are indeed the two forms of hardness. Carbonate hardness is another name for temporary hardness.
This kind of hard water is caused by the bicarbonates and carbonates containing both calcium as well as magnesium. This hardness can be eliminated by boiling the water or adding lime to it.
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