However, there is not always a simple relationship between the various hardness scales.

Hardness scales may also refer to deposits formed by hard water.

This became the basis of the hardness scale developed by Mohs.

On a hardness scale of one to ten, it could drop as low as five.

It is similar to the Mohs' hardness scale, which scratches the material.

The Vickers test has a great advantage of using one hardness scale to test all materials.

There are other hardness scales, but the Rockwell scale is especially suited to the rapid inspection of parts.

It is the softest known mineral and listed as 1 on the Mohs hardness scale.

The most common scale of measurement is the ordinal Mohs hardness scale.

Osumilite has a hardness between 5-6 on the Mohs hardness scale.

He refers to using one hard mineral to scratch another, the first allusion to what is now the Mohs hardness scale.

The harder the material to our informal perception, the greater the number it will achieve on our respective hardness scales.

Sapphire is actually just corundum and is one of the hardest minerals on the hardness scale.

Cubic zirconia is relatively hard, at about 8 on the Mohs hardness scale- much harder than most natural gemstone.

The Rockwell hardness scale used for the specification depends on the depth of the total case depth, as shown in the table below.

Uvite's hardness has been measured to be 7.5 on the Mohs hardness scale.

The Rockwell scale is a hardness scale based on indentation hardness of a material.

While diamond is the hardest substance known, at 10 on the Mohs hardness scale, it must remain firmly in the matrix to achieve cutting.

Though garnets merit an impressive 7.5 on the Mohs hardness scale - hard enough to scratch glass - they are still susceptible to the elements.

Hardness scales may refer to:

Did you know that since sapphire is the second hardest mineral in the hardness scale, it is sometimes used as a polishing tool?!

However, rutile is seldom used in jewellery because it is not very hard (scratch-resistant), measuring only about 6 on the Mohs hardness scale.

Other women I know would recoil in horror at this place, beefy guards and other inmates with an attitude on the hardness scale of a diamond.

Common indentation hardness scales are Rockwell, Vickers, Shore, and Brinell.

Tooth enamel ranks 5 on Mohs hardness scale and a Young's modulus of 83 GPa.