UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
I need to find a mineral that is hard enough to scratch a diamond. I also need to determine its hardness.
Question Date: 2006-02-16
Answer 1:

Diamonds are the hardest known minerals on the earth. I can only think of one thing that can scratch a diamond, and that's a material called "ultra hard fullerite." It's been shown to scratch diamonds using an atomic force microscope.

Answer 2:

Diamond is the hardest mineral we know of--so I don't think you'll be able to find a mineral that will scratch it. The hardness of a mineral is determined by whether it can scratch another mineral, so diamonds are at the top of the scale (called Moh's Hardness scale; it goes from 1-10).

Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use