Rock Identifier
Flower Agate (Chalcedony (SiO2)) — gemstone
gemstone

Flower Agate

Chalcedony (SiO2)

AI-generated identification · may be incorrect

Hardness of 6.5-7 on the Mohs scale, opaque to translucent pink or white with chalcedony plumes resembling floral clusters, and a vitreous to waxy luster with trigonal crystal structure.

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Physical properties

Hardness of 6.5-7 on the Mohs scale, opaque to translucent pink or white with chalcedony plumes resembling floral clusters, and a vitreous to waxy luster with trigonal crystal structure.

Formation & geological history

Formed through the deposition of silica-rich hydrothermal fluids in volcanic cavities, precipitating microcrystalline quartz over millions of years.

Uses & applications

Used primarily for ornamental carvings, polished gemstones, lapidary art, and crystal collecting.

Geological facts

The distinct flower-like inclusions are actually small chalcedony or quartz aggregations suspended within the translucent matrix.

Field identification & locations

Easily identified by its translucent chalcedony body filled with opaque white or pink flower-like chalcedony plumes, most famously sourced from Madagascar.