Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil natural pink crystal resilience

resilience

a form of gypsum crystal also known as Satin Spur and in fine grain form Alabaster

Property Information Official Name Timimoun 003 Product Type Raw Aubrite Meteorite Specimen Meteorite Type Stony Meteorite Classification Aubrite Find or Fall Find Country of Recovery Algeria Locality Adrar Province Year Found 2025 Total Known Weight 26kg Preparation Raw Treatment None

preserving the meteorite's original surface

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil natural pink crystal resilienceA beautifully preserved specimen of Promicroceras planicosta, fully replaced by calcite. This ammonite displays fine ribbing and its characteristic planispiral coiling. As a key index fossil of the Lower Jurassic Sinemurian, Promicroceras is highly significant for ammonite biostratigraphy in the UK. An excellent choice for collectors, researchers, or curated display. Stratigraphic Context Lower Lias Group, Obtusum Zone Chronostratigraphy Lower