Mohs Hardness Scale

This image shows ten minerals from soft to hard and common tools used to test the hardness of each mineral.

Detailed Description

The Mohs Scale of Mineral Hardness (created by Friedrich Mohs in 1822) 



Image Dimensions: 3300 x 2550

Date Taken:

Location Taken: US


Photos: Smithsonian Institution, Digital sketch by USGS-VSFS intern Raquel Lugo Bendezu