Dentin rates approximately 3 on the Mohs scale of mineral hardness.

Its hardness is 6 on Mohs scale of mineral hardness.

On mohs scale of mineral hardness, diamonds are scored as 10 (the highest score possible).

On the Mohs scale of mineral hardness, quartz rates no higher than a 7, less for types with impurities.

The Mohs scale of mineral hardness determines which stones or other objects will scratch what surfaces.

The coral measures 3.5 on the Mohs scale of mineral hardness so besides being easy to work, it is also easy to damage.

It is not possible to exert so great a pressure on a stone with a Mohs scale of mineral hardness rating of less than 9.0.

The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals.

Knorringite is a greenish blue color with a Mohs scale of mineral hardness of six to seven.

Rubies have a hardness of 9.0 on the Mohs scale of mineral hardness.

Åkermanite ranks a 5 or 6 on the Mohs scale of mineral hardness, and can be found grey, green, brown, or colorless.

Orthoclase is one of the ten defining minerals of the Mohs scale of mineral hardness.

The physical property of "hardness" is defined by the non-linear Mohs scale of mineral hardness.

The Mohs scale of mineral hardness is based on the ability of one natural sample of matter to scratch another mineral.

Published descriptions of these spheres being harder than steel are meaningless in terms of Mohs scale of mineral hardness.

Diamonds and graphite are both made of pure carbon, but appear at opposite ends of the Mohs scale of mineral hardness.

A Rose de France amethyst rates a 7 on the Mohs scale of mineral hardness, with the diamond being the hardest rating at a 10.

The Mohs scale of mineral hardness is a non-linear scale of common minerals' resistances to scratching.

This scale was called Mohs scale of mineral hardness, named after Friedrich Mohs.

Seraphinite is generally dark green to gray in color, has chatoyancy, and has hardness between 2 and 4 on the Mohs scale of mineral hardness.

Both its strength and abrasive characteristics originate from the high hardness (9 on the Mohs scale of mineral hardness) of aluminium oxide.

The mineralogy department of the Joanneum was also where Friedrich Mohs developed the Mohs scale of mineral hardness which is authoritative even today.

In other contexts, such as architecture, "hard stone" and "soft stone" have different meanings, referring to actual measured hardness using the Mohs scale of mineral hardness and other measures.

Because the trail left behind results from the mineral being crushed into powder, a streak can only be made of minerals softer than the streak plate, around 7 on the Mohs scale of mineral hardness.

Diamond is the hardest known natural material on the Mohs scale of mineral hardness, where hardness is defined as resistance to scratching and is graded between 1 (softest) and 10 (hardest).