Creating an Iron or Diamond Pickaxe. 1  1. Know that to mine diamonds, you need either an iron or diamond pickaxe. 2  2. Create a workbench, or crafting table, if you haven't already. 3  3. Create a wooden pickaxe.  4. Create a stone 1  pickaxe. 5. Build or find a furnace.  6. Build an iron pickaxe.
Isotherm an isogram of the temperature of air, water, or soil. Most commonly drawn are isothermal maps showing mean monthly air temperature over a number of years, mean temperature for any period of time, or the temperature at a definite moment of time.
Isotropic means that the properties of materials are the same in all directions. In processes, the rate of process is the same in all directions. Isotropy comes in many subjects like materials, physics, cosmology, chemistry, etc. It should be distinguished depending on the subject. In an isotropic material, physical and mechanical properties are equal in all orientations or directions.