What Is The Strongest Rock In The World?

What is the hardest rock besides diamond?

The Mohs Scale of Hardness10Diamond9Corundum (rubies and sapphires)8Topaz7Quartz [Example: It scratches window glass]6Feldspar [Example: A steel file will scratch it]5 more rows.

Is there a rock harder than diamond?

(PhysOrg.com) — Currently, diamond is regarded to be the hardest known material in the world. But by considering large compressive pressures under indenters, scientists have calculated that a material called wurtzite boron nitride (w-BN) has a greater indentation strength than diamond.

Can you melt down a diamond?

In the absence of oxygen, diamonds can be heated to much higher temperatures. Above the temperatures listed below, diamond crystals transform into graphite. The ultimate melting point of diamond is about 4,027° Celsius (7,280° Fahrenheit).

What is the weakest rock?

Sedimentary rocksSedimentary rocks tend to be the ‘weakest’ of the three, as Igneous and Metamorphic rocks both undergo extreme pressures to form.

Is Obsidian stronger than diamond?

Diamond is harder than obsidian, as obsidian is a form of volcanic glass. … Obsidian has a hardness of 5 to 5.5 on the mineral hardness scale, whereas diamonds have a hardness of 10.

What happens if you melt a diamond?

At ~700 degrees Fahrenheit the diamond will start burning. This will produce Carbon Dioxide and change the structure so that it is no longer a diamond. As diamond is made of Carbon, it would revert back to that form while losing its mass to the production of CO2. This is due to the presence of Oxygen.

What is the toughest material on earth?

DiamondDiamond is the hardest substance found on earth in so many natural forms, and it is an allotrope of carbon. The hardness of diamond is the highest level of Mohs hardness – grade 10. Its microhardness is 10000kg/mm2, which is 1,000 times higher than quartz and 150 times higher than corundum.

Can a bullet break a diamond?

Yes, but only in unusual circumstances. The other answers have hopefully driven home the difference between hardness and toughness. A bag of diamonds a few inches thick would stop a bullet because shattering the diamonds would use up the bullet’s kinetic energy.

Can you crush a diamond with a hammer?

As an example, you can scratch steel with a diamond, but you can easily shatter a diamond with a hammer. The diamond is hard, the hammer is strong. … This makes the diamond incredibly hard and is why it is able to scratch any other material.

What is the rarest gem on earth?

MusgraviteMusgravite was discovered in 1967 and is arguably the rarest gemstone in the world. It was first discovered in Musgrave Ranges, Australia, and later found in Madagascar and Greenland. The first sizable gem-quality specimen was discovered in 1993.

What can damage a diamond?

Inherent Flaws. The number one reason a diamond becomes damaged is the presence of an intrinsic flaw (natural inclusion) in the diamond itself. Although natural inclusions are typical (and part of the diamond’s unique fingerprint), the presence of an inclusion makes the diamond vulnerable to chips and cracks.

Is there anything harder than diamond?

Diamonds remain the most scratch-resistant material known to humanity. … The structure of boron nitride in its wurtzite configuration is stronger than diamonds. Boron nitride can also be used to construct nanotubes, aerogels, and a wide variety of other fascinating applications.

What is the hardest thing to melt?

TungstenTungsten is known as one of the toughest things found in nature. It is super dense and almost impossible to melt. Pure tungsten is a silver-white metal and when made into a fine powder can be combustible and can spontaneously ignite.

What stone is better than a diamond?

White Sapphire is the clear winner in terms of a natural diamond alternative. Those choosing White Sapphire should expect white sparkle only as compared with the white and colored sparkle diamond offers.

What is the softest rock in the world?

talcThe name for talc, a sheer white mineral, is derived from the Greek word talq, which means “pure.” It is the softest rock on earth.