Perovskite mineral

Perovskite is the calcium titanate mineral species with ideal formula CaTiO3. The September 2026 IMA-CNMNC list gives grandfathered status G and original description year 1839, not an IMA approval number. This owner identifies the mineral species, not the broader perovskite structure class, halide photovoltaic materials, elemental titanium, or a perovskite-bearing concentrate. Keller and Buseck (1994) independently characterized natural perovskite grains from Ca-Al-rich inclusions in the Allende and Vigarano carbonaceous chondrites by transmission electron microscopy and electron diffraction, using the orthorhombic Pnma setting. Their energy-dispersive analyses detected Ca and Ti without other reported detectable elements; this is detection-limited cation evidence, not proof of absolute purity or a measured oxygen balance. The paper examined over 50 grains from six extracted regions. Its separately synthesized CaTiO3 cooling experiments are not natural-feed extraction or recovery studies. Twinning observations and inferred meteorite thermal histories are kept distinct; no universal high-temperature transition sequence or cooling-rate thermometer is asserted here. No microbial mechanism, processing performance, industrial deployment or criticality designation is inferred.

Record source: data/records/perovskite.yaml