
Sapphire | The Lord of the Rings Minecraft Mod Wiki | Fandom
Sapphire has a hardness of 9 on the Mohs Hardness Scale. Because of this hardness it is used for industrial applications as well as decoration. Sapphire is a type of corundum, or aluminum oxide. The blue comes from traces of impurities, which can be iron, titanium, chromium, copper, or magnesium. Gems. Ores of Middleearth.