Attractive Grape Chalcedony from Sulawesi
This fascinating miniature specimen represents an unusual mineralogical formation from the well-known Mamuju region in West Sulawesi, Indonesia. The attractive collector specimen is distinguished by its characteristic rounded, grape-like botryoidal structure. Its lively range of colors is particularly appealing, shifting across a small surface from delicate violet and warm brown to subtle green tones. It is an attractive specimen for collectors of unusual crystal forms and modern mineral localities.
Botryoidal Geometry and a Soft Shimmer
The tiny, closely intergrown chalcedony spheres resemble a cluster of grapes and create a softly shimmering appearance in the light. With compact dimensions of 3.3 × 3.0 × 1.0 cm, this miniature specimen is well suited to systematic mineral collections or as a detailed highlight in a display cabinet. The specimen attractively documents the unusual hydrothermal mineralization of the Indonesian island of Sulawesi.
| Feature | Details |
|---|---|
| Mineral Type | Grape chalcedony (botryoidal chalcedony / quartz variety) |
| Locality | Mamuju Area, West Sulawesi Province, Sulawesi Island, Indonesia |
| Specimen dimensions | 3.3 × 3.0 × 1.0 cm (Miniature specimen) |
| Total weight | ~ 8 g |
| Morphology | Rounded, grape-like botryoidal aggregate composed of chalcedony spheres |
| Appearance and Luster | Multicolored (violet, brown, green); dull to silky luster |
| Special Feature | Characteristic grape chalcedony from the well-known Mamuju region |
| Mineral | Chalcedony |
|---|---|
| Color | Violet |
| Size | Miniature specimen (3-5 cm) |
| Continent | Asia |
| Country | Indonesia |
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