Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Red Aventurine It’s like having a little

It’s like having a little piece of the ocean in your pocket

As a natural stone

Carnelian (Sacral Chakra)

Encourages unconditional love and compassion

Heart Chakra – Opens and strengthens the heart space

Promicroceras planicosta (Reynès, 1879) – Calcite Ammonite Fossil Red Aventurine It’s like having a littleA 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