Diamond is number 10 on the Mohs scale, and is 40 times harder than Corundum, which is number 9 on the Moh's scale. It also has the most dense atom ical configuration of any mineral, and is transparent over the greatest number of wavelengths.ISTINGUISHING SIMILAR MINERALS. The only mineral that can possibly be be confused with Diamond is waterworn Quartz pebbles which may resemble waterworn Diamonds, but the hardness and luster of Diamond will easily differentiate the two.
.A disconformity is an unconformity between parallel layers of sedimentary rocks which represents a period of erosion or non-deposition.
an arrangement of rock layers in which the oldest rocks are at the bottom. Unconformity. a break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time.