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 ...

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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 ...

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 ...

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 ...

Certainly! Here's the new description with all the links removed: --- So, rocks are hard. But the scale we use to rank them, the Mohs scale, is only really good at quantifying that for one kind of ...

The hardness scale was created by trying to scratch one mineral with another. It was then recorded which mineral left a scratch. For example, Corundum, (Ruby and Sapphire) was used to scratch Apatite.

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 ...

Reviewers and YouTube examiners are discovering that the new Samsung Galaxy Note 7 Gorilla Glass 5 screen is susceptible to screen scratches. However, the Gorilla Glass manufacturer Corning disagrees ...