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www.newscientist.com/article/dn16610-diamond-no-longer-natures-hardest-material

The gemstone lost its title of the “world’s hardest material” to man-made nanomaterials some time ago. Now a rare natural substance looks likely to leave them all far behind – at 58 per ...

van.physics.illinois.edu/qa/listing.php?id=613

The hardest substance known is diamond. [but see note below] Diamond is made up entirely of the element carbon. (Another thing that is made entirely of carbon is graphite, one of the softest substances.) Diamond’s hardness is roughly 10.5-14.5 million psi. The second hardest substance is a compound make from aluminum, magnesium, and boron.

www.howitworksdaily.com/what-is-the-hardest-natural-material-on-earth

Diamond is currently thought to be the hardest natural material on Earth, having a hardness of ten out of ten on the Mohs scale of mineral hardness. Diamond is made up of carbon atoms which share strong covalent bonds (where electrons are shared between atoms) and are equally spaced in a lattice ...

www.transmet.com/the-10-strongest-materials-known-to-man

What about Lonsdaleite, a material formed when meteorites hit Earth? Below are the 10 strongest materials known to man: #10 Spiders’ Silk. Darwin bark spiders’ silk is considered the toughest biological substance. It is 10 times stronger than Kevlar. A strand long enough to circle the Earth would weigh less than 500 grams! #9 Silicon Carbide

factmyth.com/factoids/diamond-is-the-hardest-natural-substance

What is the Hardest Natural Substance on Earth. Diamond is the most common of the naturally occurring “hardest” substances, but Q-carbon, wurtzite BN, lonsdaleite, ultrahard fullerene, graphene, and carbyne are all harder.

list25.com/25-strongest-materials-known-to-man

Do you know what the strongest material on Earth is? You probably guessed diamond right? Well, in some sense you are right. It is commonly referred to as the hardest natural substance on Earth.But, as with most things, this answer is vastly over simplified.

www.reference.com/science/hardest-material-earth-47d3cef59b8c369d

What Is the Hardest Material on Earth? What Is the Hardest Material on Earth? As for 2014, the hardest material on earth is a diamond, a form of pure carbon. It ranks 10 on the Mohs hardness scale and has a rating of between 70 and 150 GPa, or gigapascals on the Vickers hardness scale. ... The only natural substance that can break apart the ...

top5ofanything.com/list/85f01b6e/Hardest-Substances-on-Earth

Tags: Planet Earth Sources: Top 5 of Anything.com research 2012. List Notes: Data is naturally occurring minerals according to absolute hardness.Absolute hardness is measured by a sclerometer. Please note: Top 5 of Anything.com has not included lonsdaleite or Wurtzite boron nitride on this list because they have to be synthesized in a laboratory by compressing and heating in order to attain a ...

en.wikipedia.org/wiki/Superhard_material

A superhard material is a material with a hardness value exceeding 40 gigapascals when measured by the Vickers hardness test. They are highly incompressible solids with high electron density and high bond covalency.As a result of their unique properties, these materials are of great interest in many industrial areas including, but not limited to, abrasives, polishing and cutting tools and wear ...

theconversation.com/have-scientists-really-found-something-harder-than-diamond-52391

Ask most people what the hardest material on Earth is and they will probably answer “diamond”. Its name comes from the Greek word ἀδάμας (adámas) meaning “unbreakable” or ...