greenockiittimalmeissa

Greenockite is a rare mineral with the chemical formula (Mg,Fe)2Al3(BO3)4. It was first discovered in 1962 in the Greenock district of Ontario, Canada, and is named after this location. Greenockite is typically found in metamorphosed boron-rich sediments, often associated with minerals such as tourmaline, beryl, and other boron-bearing minerals. It is characterized by its dark green to black color, which is due to the presence of iron in its structure. The mineral has a hardness of approximately 7.5 on the Mohs scale and a specific gravity of around 3.3. Greenockite is not commonly used in industry due to its rarity and the difficulty in extracting it from its host rocks. However, it is of interest to mineralogists and collectors for its unique composition and appearance.