garnieriitistä
Garnieriit is a rare mineral that was first discovered in 1979 in the Garnierite deposit in New Caledonia. It is named after the Garnierite deposit, which is the type locality for this mineral. Garnieriit is a member of the garnierite group, which includes other minerals such as hydrogarnierite and nickelgarnierite. Garnieriit is a nickel-iron hydroxide mineral with the chemical formula Ni3(OH)4(NO3)2. It is typically found in laterite deposits, which are formed through the weathering of ultramafic rocks. Garnieriit is characterized by its greenish-brown color and its hexagonal crystal structure. It is often associated with other minerals such as goethite, limonite, and brucite. Garnieriit is of interest to geologists and mineralogists due to its rarity and the unique conditions under which it forms. It is also of potential economic interest due to its nickel content. However, garnieriit is not currently mined on a large scale due to its rarity and the presence of more abundant and easier-to-mine nickel-bearing minerals.