Anataz iz Norveške je primerak retkog minerala iz grupe titan-dioksida (TiO₂). Poznat je po svojim jasno razvijenim kristalima i tamnom, skoro metalnom sjaju. Ovaj uzorak…
Opširnije AnatazTag: Anatase
Anatase is one of three natural polymorphs of titanium dioxide, along with rutile and brookite. It forms sharp, often bipyramidal crystals, typically dark blue to black. Common in alluvial sediments and hydrothermal veins, anatase is valued by mineral collectors.