All tempered glass passes the 9H scratch test, so retailers technically aren't lying about 9H hardness. Typical glass sits at 5.5 on the Mohs scale, with tempered glass usually around 7.

Samsung’s Galaxy Z Fold 7 went through JerryRigEverything’s traditional durability test, which includes scratch, burn, and bend tests. The new Fold ...

The hardness of a material is rated in Mohs, where talc is rated as 1 Mohs and diamond 10 Mohs. Glass ranks around 5.5 to 7 Mohs, but sapphire crystal has a hardness of 9 Mohs, making it only ...

The iPhone 5s screen with Gorilla Glass 3 was rated at a Mohs hardness of 6.8. The Mohs rating of the iPhone 6 with Apple's ion-hardened glass is not known, but does scratch more readily than 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.

Melamine sponges have a Mohs hardness of 4. Regular glass has a Mohs hardness of 5.5, and tempered glass can be even harder. Bathroom tile has a hardness around 7, going up to around 9.

The Mohs Hardness Scale display can be found in case number one on the main floor of the main gallery at the Keck Museum. Mineral Monday is a weekly video series exploring the many amazing minerals, ...