Genuine Black Agate Crystal Mineral Specimen – Collectible Fossil Stone – Volcanic Silica Nodule – Healing Crystal – COA

Description

Scale & Sizing
Scale cube in photo = 1cm. Please refer to images for full sizing and proportions. Exact measurements are included to the best accuracy possible, though natural specimens may have irregular shapes.

Authenticity Guarantee
All of our minerals, crystals, and fossils are 100% genuine natural specimens. Each purchase comes with a Certificate of Authenticity for complete buyer confidence.

About Agate
Agate is a fascinating variety of chalcedony (microcrystalline quartz), part of the silica mineral family. It is renowned for its fine grain, durability, and vibrant banding or colouration, making it highly sought after by collectors, lapidary artists, and spiritual enthusiasts alike.

Most agates occur as nodules within volcanic rocks or ancient lavas, where silica-rich groundwater has slowly deposited concentric layers over millions of years. These layered deposits often result in stunning patterns and banded structures. Due to its resilience and beauty, agate has been used since antiquity for carving ornaments, seals, beads, and jewellery. Ancient cultures valued it as a protective stone believed to bring stability and harmony.

Geological Significance
Agates form through a long geological process involving the filling of cavities within volcanic rock. Over time, the slow crystallisation of silica creates distinctive patterns unique to each specimen. This makes every piece of agate truly one-of-a-kind, with no two examples ever identical. Black agate in particular is admired for its deep, sleek colouration and grounding energy.

Specimen Details

• Colour: Black
• Type: Agate (Silica Mineral, Chalcedony variety)
• Formation: Volcanic nodule
• Unique: Actual as seen – photos show the exact specimen you will receive

Photography Note
Colours are captured as accurately as possible under professional lighting. Variations may occur depending on natural sunlight, indoor lighting, and screen settings across different devices.

Once this exact specimen is sold, the listing will be updated with a new, hand-selected specimen, with fresh photos and measurements. Every piece in our collection is carefully chosen for its aesthetic and geological quality.