Mohs Scale Clock

Category: Website
Project date: 2016 - present (ongoing)
Project URL: <a href="https://geology.uaic.ro/andrei.apopei/mohs/" target="_blank" class="text-break">https://geology.uaic.ro/andrei.apopei/mohs

This is a live-clock for geologists. You know the time if you know the Mohs' hardness scale.