[SOLVED] Geology – Geology

You are given two crystals. One crystal is a yellow diamond that has been kept locked in a freezer for 30 years. The other crystal is a cubic zirconia. Both are virtually the same hardness. What simple test could you perform to tell them apart? What mineral group...

[SOLVED] Proterozoic – Geology

The Proterozoic Eon is a significant time period because this is when life started to really evolve and earth was completely covered in snow! For this assignment, pretend that you are going to go to an introductory geology grade class and the goal is to teach them...