Malachite, commonly known as glass, is a rare, volcanic, milky translucent green crystal, used in creating strong but lightweight metallic Altmer armor and weapons. It is similar to ebony, but is less durable and more lightweight. It bears no relation to the common, brittle glass used in windows and ornaments, as it is far stronger and has a much higher melting point. It is most commonly found in Morrowind on the volcanic island of Vvardenfell, but ore veins can also be found in Skyrim. Glass armor is made using rare metals such as moonstone in order to give it the right strength, and is studded with malachite to create an armor stronger than steel due to its ability to absorb and distribute shocks. Similarly, glass weapons are created using rare metals and volcanic glass to produce blades of virtually unparalleled sharpness and light weight. Glass weapons wear quickly however and require frequent repair. Raw glass can be used in alchemy. Malachite ore must be smelted down into ingots of refined malachite before it can be used in smithing, and even then only skilled glass smiths can work with the material. Hammer blows struck across the grain run the risk of shattering the armor. Malachite mining is very profitable. In Morrowind, the East Empire Company had sole authority to trade in raw glass, although it appears that no such limits exist in Skyrim, and settlements such as Kynesgrove depend on the mining of malachite ore. Malachite is sometimes stylistically integrated into arms and armor of a different base material to give the items the appearance of glass equipment, although such practice is merely cosmetic.