The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science.
Enjoy Teaching Rocks Freebie - Pump up your geology unit! Grab this set of rock identification tools with properties, the MOHs scale, and a handy table. Stop by Enjoy-Teaching.com every week for new ideas, links, and freebies for third grade, fourth grade, and fifth grade.
Pyroclastic Flows on Ischia | #Geology#GeologyPage Locality: Poseidon's Gardens near Citara on the island of Ischia Italy Photo Copyright Drew Patrick Fox Lane High School/EPOD Geology Page www.geologypage.com