Ammonite fossil It is a fossilized organism, and its chemical composition is the result of geological and mineralogical processes that have taken place over millions of years. The ammonites, being cephalopod marine organisms, had shells originally formed of Aragonite (a form of calcium carbonate), but after their death and during the fossilization process, the original organic material is gradually replaced by minerals.

Features:

  • Aspect: Ammonites have a spiral shell, and fossilization can provide iridescent colors or mineral crystals inside. Some examples feature intricate details of the inner chamber, making them particularly visually appealing.
  • Metaphysical properties: Ammonites are considered symbols of change and evolution. They are said to help release emotional blockages and bring spiritual balance and positive energy.

  • Use: Ammonite fossils are valued in jewellery as well as Pendants, Bracelets, Rings, but also as decorative objects and pieces for collectors of Fossils and semi-precious stones.

There are several types of Yellow card, each with distinct characteristics related to shell shape, size, and fossilization process. Here are some of the best known:

  1. Cleonyceras - Ammonite with a smooth spiral shell, often exhibiting impressive iridescence.
  2. Dactyloceras - Characterized by its tight spirals and well-defined ribs.
  3. Placenticeras - Fossils of this type typically have a large, smooth shell with a fine texture and sometimes mineral inclusions.
  4. Acanthoceras - It has a shell with protrusions and thorns that give it a distinctive appearance.
  5. Desmoceras - Ammonite with a round and symmetrical shape, with beautiful iridescence caused by the fossilization process.
  6. Hoploscaphites - It is known for its unusual shape of partially unfolded spirals.

Each type of ammonite has its own beauty and is valued for both its scientific and decorative value.