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A mineralâs hardness is related to the strength of its weakest bond, and minerals may have different hardnesses in different directions. For example, kyanite has a hardness of 5.5 if scratched lengthwise, but a hardness of 6.5 if scratched crosswise (numbers in Mohs scale). Since covalent bonds are stronger than ionic bonds, minerals in which covalent bonds dominate will be harder than those in which ionic bonds are prevalent.
The scale of mineral hardness is referred to as the Mohs scale.  They run from 1 which is Talc to 10, which is diamond. The other  units are 2: Gypsum, 3: Calcite, 4: Fluori â¦ te, 5: Apatite, 6:  Feldspar, 7: Quartz, 8: Topaz, and 9: Corundum.he smallest unit of space on a hard drive is a bit. Eight bits make a byte, which is the basic unit. Half a byte is (appropriately) called a nibble. One thousand and twen â¦ ty-four bytes make up a kilobyte, 1024 kilobytes make up a megabyte, 1024MB equals a gigabyte, and 1024GB equals one terabyte.