What is Khatyrkite?
Khatyrkite is a rare copper-aluminium intermetallic mineral from meteorite-bearing material, notable for its unusual chemistry and association with natural quasicrystal research.
Mineralogy and crystal structure
Reference formula: CuAl2. Khatyrkite has a tetragonal intermetallic structure and occurs with other Cu-Al phases and natural quasicrystals. Its metallic grains are small and scientific identification depends on microscopy and composition, not colour alone. Khatyrkite is classified with alloys and has a tetragonal crystal system. Typical hardness is 3–4 on the Mohs scale and specific gravity is approximately 6.0–6.2.
Colour, lustre and habit
Typical colours include silver-grey, brass-yellow, black. The usual granular, massive, irregular habit and metallic lustre help describe a specimen, but colour alone is not diagnostic.
Formation and notable localities
Khatyrkite forms in or is associated with refractory meteorite assemblages and highly unusual extraterrestrial mineral environments. Important documented localities include Koryak Mountains, Russia, and related meteorite research material.
A mineral at the edge of conventional crystal chemistry
Khatyrkite is a conversation piece for an advanced collection: a natural alloy connected with meteorites and quasicrystal science. Its value comes from rarity, provenance and the surprising fact that a metal-like phase formed in nature.
Collecting and care
Keep labelled and protected from abrasion; preserve the meteorite context and avoid cutting valuable research material.
