Bottinoite Locality: Dörnberg Mine, Ramsbeck, Meschede, Sauerland, North Rhine-Westphalia, Germany Field of view 4 mm. Specimen and photo Leon Hupperichs. — Photo: Leon Hupperichs · CC BY-SA 3.0
Bottinoite
Bottinoite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula NiSb⁵⁺₂(OH)₁₂·6H₂O.
It crystallizes in the hexagonal crystal system (space group P3).
Key properties: Mohs hardness 3; specific gravity 2.83; Very pale blue streak; Vitreous luster; optically uniaxial.
IMA symbol Bot, IMA status: approved, named in 1991.
Adjacent to and incrusting ullmannite in oxidized hydrothermal base-metal deposits.
It is found associated with Ullmannite, galena, sphalerite, chalcopyrite, pyrite, quartz, calcite, bindheimite, cerussite, hydrozincite, chrysocolla, malachite, hemimorphite.
The name refers to its occurrence in the Bottino mine, Italy.