The Mohs hardness scale is a relative scale usually used for minerals and does not involve any measurement of deformation, as do other quantitative methods. It simply involves the assignment of a ...

• Engineers can use hardness testing to verify the composition or heat-treatment history of materials. • Rockwell, Brinell, Vickers, and Shore are common hardness tests. Their use depends on the ...

Geologists do it according to the Mohs Scale of Hardness. There. That’s your “hardness” joke for the post. Now down to business, with the hardest (and softest) scale there is. In 1812, people had just ...

Mineral Monday is a weekly video series exploring the many amazing minerals, fossils, and historic objects on display at the W.M. Keck Earth Science and Mineral Engineering Museum as told by museum ...

Have you ever wondered what the hardness of tanzanite is? But before that, let’s understand what a Tanzanite is. It’s a pretty blue-violet gem that belongs to the mineral group. Think about strolling ...

I can’t remember if we’re still mad at Consumer Reports for Antennagate but they seem to be doing a thorough job at testing the Apple Watch as evidenced in the video below. Notable from their Day 1 ...