Saya mau tau Rujukan dari Skala Mohs. Jelaskan dalam bahasa melayu

Mohs hardness of elements is taken from G.V. Samsonov (Ed.) in Handbook of the physicochemical properties of the elements, IFI-Plenum, New York, USA, 1968.

Cordua, William S. "The Hardness of Minerals and Rocks". Lapidary Digest, c. 1990.