PowerPointâs main ribbon doesnât have a button that makes a document uneditable, but you can find one that does when you know where to look. Step 1. Launch PowerPoint and open a presentation youâd like to make uneditable. Step 2. Click âFile,â then âInfoâ to view information about the presentation.
Cubic Zirconia (CZ), moissanite, etc., are diamond simulants as they look like diamonds, but have different chemical properties. Therefore, many experts argue that it is inappropriate to call simulated diamonds, 'diamonds'; they should be simply known as simulants. Simulated Diamonds - A Flashback.
Experiments and the high density of diamonds tell us that they crystallize at very high pressures. In nature this means that diamonds are created by geologic processes at great depth within Earth, generally more than 150 kilometers down, in a region beneath the crust known as the mantle. Other processes, explored later in this exhibition, bring diamonds to where people can find them. This diagram shows the interior structure of Earth. The three concentric layers -- the core, mantle, and crust -- formed within a few hundred million years of Earth's coalescence 4.5 billion years ago. The core is primarily an iron-nickel alloy and makes up a large fraction of the mass of Earth.