Natural Grape Agate Specimen – 1kg, Indonesia

One of the most extraordinary mineral discoveries of recent decades — this natural grape agate specimen from Indonesia is a truly breathtaking piece weighing 1 kilogram. Grape agate is a trade name for botryoidal purple chalcedony found in the Mamuju region of Sulawesi, Indonesia, where it forms in clusters of tiny, perfectly rounded spheres that stack together like a bunch of ripe grapes fresh from the vine.

At 1kg, this is a substantial, museum-quality specimen with exceptional visual impact. The clusters of deep purple to lavender spheres catch the light from every angle, creating a velvety, three-dimensional texture that is unlike any other mineral. The colour ranges from rich violet through to soft lilac, with a natural lustre that needs no polishing to impress.

A rare and highly collectible specimen that commands attention in any display — this is the kind of piece that stops people in their tracks.

• Mineral: Grape Agate (Botryoidal Purple Chalcedony)
• Origin: Mamuju, Sulawesi, Indonesia
• Weight: 1kg
• Form: Natural, unpolished botryoidal clusters