First of all I want you to have a look at some specific vocabulary , essential if you are to describe them:
Color, luster, specific gravity, crystal form, cleavage, fracture, tenacity, hsrdness and transparency. You can also find a glossary of words and phrases and their definitions.
Maybe it is a good idea to have a complete list of rocks and minerals toguether with their pictures, don't you thing? Click on this link and you will have all the minerals and roocks at hand.
Summer dreams in Virtual Reality
8 years ago