This exceptional bivalve (Pelecypoda) fossil sea shell from Indonesia is a striking fusion of deep geological time and mineral transformation. Once a living marine organism, this shell has been preserved through fossilization and later enhanced by the natural crystallization of chalcopyrite, creating a stunning contrast between ancient biological form and metallic mineral growth.
The fossil retains clear bivalve morphology—ribbing, curvature, and shell symmetry—while chalcopyrite coats or infills portions of the shell with vibrant brassy gold tones and iridescent flashes. Chalcopyrite forms during hydrothermal activity, when copper-rich fluids move through surrounding rock, depositing crystals into available cavities and fossil material. The result is a rare and visually dramatic specimen that tells a layered story of both life and Earth’s mineral processes.
This specimen is ideal for fossil collectors, mineral enthusiasts, educational displays, or natural history decor, offering a compelling example of mineral replacement and secondary mineralization.
🔍 Key Features
- Authentic bivalve (pelecypod) fossil
- Naturally associated chalcopyrite mineralization
- Sourced from Indonesia
- Displays both fossil structure and metallic crystal growth
- One-of-a-kind natural specimen
- Excellent for collectors, museums, classrooms, or display shelves
🌍 Geological & Scientific Context
Bivalves (class Pelecypoda) are among the most common marine fossils, dating back hundreds of millions of years. This specimen represents an ancient seabed environment where sediment burial preserved the shell structure. Later, hydrothermal fluids rich in copper infiltrated the fossil, depositing chalcopyrite—an important copper sulfide mineral—directly onto and within the shell.
The combination of paleontology and mineralogy makes this piece especially valuable for educational and interpretive collections.
📐 Specifications
- Material: Fossilized bivalve shell with chalcopyrite
- Age: Prehistoric (exact age undetermined)
- Locality: Indonesia
- Condition: Natural, unaltered specimen
- Treatment: None
- Sample Type: Thumbnail (small)
📏 Exact dimensions and weight listed in item specifics or shown in photos.
📦 Shipping & Packaging
- Carefully wrapped and securely packed
- Ships with tracking
- You will receive the exact specimen pictured
🧠 Educational Use
Perfect for:
- Fossil and mineral identification studies
- Earth science and geology education
- Comparative fossil displays
- Teaching mineral replacement and secondary mineralization
✨ Metaphysical Belief
The metaphysical community believes chalcopyrite is associated with abundance, insight, and energy flow, while fossils are thought to symbolize grounding, stability, and deep time connection.