Discover the extraordinary beauty of these natural Rainbow Pyrite Fossil Specimens from Ulyanovsk, Ulyanovsk Oblast, Russia. Available as four unique collector variations, these rare fossils showcase an incredible iridescent metallic surface displaying vivid flashes of gold, blue, green, purple, and bronze tones formed naturally over millions of years.

Unlike traditional Pyrite crystal specimens, Rainbow Pyrite from this locality is actually fossilised ancient marine material that has undergone pyritisation — a rare geological process where organic structures become replaced with iron sulphide minerals over time. This creates spectacular metallic fossil formations with shimmering rainbow iridescence that distinguish them from standard cubic Pyrite crystals commonly known as “Fool’s Gold.”

These fascinating specimens originate from Jurassic marine deposits in Russia, where ancient ammonites and other prehistoric organic materials became mineralised under unique environmental conditions. The result is a stunning combination of palaeontology and mineralogy, making Rainbow Pyrite highly desirable for fossil collectors, mineral enthusiasts, geology lovers, and crystal displays.

Each piece is completely unique, featuring its own natural fossil textures, metallic lustre, pyritised structure, and iridescent colour play created entirely by nature.

What Is Rainbow Pyrite?

Rainbow Pyrite is not traditional Pyrite crystal growth. Instead, it is fossil material that has been naturally replaced and preserved with pyrite through a process called pyritisation. Over millions of years, ancient marine organisms became mineralised within sedimentary deposits, creating metallic fossil specimens with striking rainbow iridescence caused by surface oxidation and light interaction.

This rare material combines both fossil preservation and mineral formation, making it highly collectible and visually distinctive from ordinary Pyrite specimens.

Geological & Mineral Information

Mineral Composition: Iron Sulphide (Pyrite)
Formation Process: Fossilised marine material replaced by pyrite
Primary Locality: Ulyanovsk, Ulyanovsk Oblast, Russia
Age: Jurassic Period
Hardness: 6–6.5 Mohs

Metaphysical Properties

Rainbow Pyrite is often associated with vitality, confidence, manifestation, mental clarity, and energetic protection. Many crystal enthusiasts use it to encourage motivation, creativity, resilience, and positive energy while remaining grounded and focused.

Chakra Association

Solar Plexus Chakra
Root Chakra

Zodiac Connection

Leo, Aries, Capricorn

Element

Fire
Earth

Crystal Pairing Suggestions

Pairs beautifully with Citrine, Hematite, Labradorite, Carnelian, and Golden Healer Quartz.

Please Note

Please note you will receive the exact fossil specimen selected from the variation options shown in the images.

Shipping Information

We offer reliable and carefully managed delivery services to ensure your order arrives safely and securely.

Royal Mail Tracked 48 — £3.80
Available for smaller parcels weighing up to 2kg, with an estimated delivery time of 2–3 working days after dispatch.

DHL / DPD Courier Delivery — £6.87
Available for UK mainland deliveries weighing up to 20kg, providing a reliable service for larger or heavier orders.

All orders are carefully packaged to protect your specimens during transit.

Shipping options and applicable charges are confirmed at checkout.

Thank you for choosing GeoFossils.