PLEASE HELP ME DUE TODAY 1. Which mineral above would be the most difficult to scratch?

2. Give two examples of minerals that have a property in common.

3. Could you have identified any of the minerals after having described only a few, rather than all, of the properties you tested? If so, give an example.

4. Why is it still a good idea to test more properties than might be necessary?

Explanation:

Diamond will be the hardest to sctrach.

2. crystal form, hardness, fracture or cleavage, luster, color, streal and density

3. Yes you may be. Most minerals can be characterized and classified by their unique physical properties: hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.

4. So that you may be sure that you may be more sure that is that mineral

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radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.