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.
WSI's Worldwide Continental Map depicting color contour isotherms, or lines of equal temperature in degrees Celsius. Major metropolitan cities also depicted along with prevailing weather icon. Data are updated hourly to indicate current conditions in Universal Time Code/UTC.