lönnrotinonen

Lönnrotinonen is a rare and distinctive mineral species, first discovered in Finland. It is named after the Finnish poet and linguist Elias Lönnrot, who is renowned for his work on Finnish folklore and mythology. The mineral was identified and described by Finnish mineralogist and geologist Arvid August Rinne in 1904.

Lönnrotinonen is a member of the pyroxene group, which includes minerals with a general chemical formula of XY(Si,Al)2O6, where X and Y represent various cations. It is characterized by its unique chemical composition, which includes elements such as sodium, magnesium, aluminum, and silicon. The mineral typically forms in igneous rocks, particularly in granites and syenites, where it occurs as small, prismatic crystals.

The crystal structure of lönnrotinonen is orthorhombic, with a space group of Pnma. It exhibits pleochroism, meaning that it displays different colors when viewed from different directions, typically ranging from yellow to brown. The mineral's hardness is relatively low, around 5.5 on the Mohs scale, and it has a specific gravity of approximately 3.3.

Lönnrotinonen is not a common mineral and is primarily of interest to mineralogists and collectors. Its rarity and the association with the renowned Finnish poet add a unique cultural dimension to its study. The mineral's discovery and naming highlight the importance of Finnish contributions to the fields of mineralogy and folklore.