mineral
Grape Agate
Chalcedony (Silicon Dioxide, SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, displays a botryoidal (grape-like) crystal habit with purple to green colors and a vitreous to waxy luster.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, displays a botryoidal (grape-like) crystal habit with purple to green colors and a vitreous to waxy luster.
Formation & geological history
Formed through the precipitation of silica-rich hydrothermal solutions in volcanic cavities, primarily found in Indonesia.
Uses & applications
Used primarily in crystal healing, mineral specimen collecting, and occasionally crafted into unique jewelry.
Geological facts
Despite its popular trade name 'grape agate', it is actually a botryoidal chalcedony rather than true agate since it lacks distinct banding.
Field identification & locations
Easily identified by its distinctive cluster of spherical botryoidal crystals and purple hues; collected mainly in Sulawesi, Indonesia.
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