Grape agate is a unique and relatively rare form of chalcedony, a type of mineral that is composed of microscopic crystals of quartz. It is found in the Mamuju area of West Sulawesi, Indonesia and is known for its striking purple coloration and resemblance to clusters of grapes.
The grape-like formations are created by a process known as botryoidal growth, in which the mineral forms rounded, globular shapes that resemble clusters of grapes. The purple coloration is caused by the presence of manganese, which can create a range of hues from pale lavender to deep violet.
This listing is for one tumbled stone, it will be similar to the photos but note that nature is amazing in all its complexity and uniqueness and as such, each crystal will differ slightly. All crystals have been hand-selected for quality and aesthetics so you can rest assured that you will receive a beautiful piece.