There is a great variety of modes of land ownership and tenure: 1  Traditional land tenure. 2  Ownership of land by swearing to make productive use of it. 3  Allodial title, a system in which real property is owned absolutely free and clear of any superior landlord or sovereign.
Manganese Violet is a violet pigment used the formulation of makeup, hair coloring products, bath products, nail polish and skin care products.
Railroad tracks, for example, are made with steel that contains as much as 1.2% manganese. Manganese is also used to give glass an amethyst color and is responsible for the color of amethyst gemstones. Manganese dioxide (MnO 2), the most common compound of manganese, makes up about 0.14% of the Earth's crust. It is used in dry cell batteries to prevent the formation of hydrogen, to remove the green color in glass that is caused by the presence of iron contaminants, and as a drying agent in black paints.