Tag: Moh’s Scale

Gemstone Hardness and The Moh’s Scale

Gemstone Hardness and The Moh’s Scale

Diamond, which is the hardest naturally occurring substance, is highest on the scale, and talc, which can be scratched with a fingernail, is at the bottom. The position of a substance on the scale is determined by finding the hardest material that the given substance can scratch, and/or the softest material that can scratch the […]

September 3, 2009 | By | Reply More