mineral

Chalcedony Rose

Silicon Dioxide (SiO2)

Hardness of 6.5-7 on the Mohs scale, colors range from white, grey, yellowish-brown, to reddish-brown, waxy to vitreous luster, cryptocrystalline crystal structure, no cleavage, specific gravity of 2.58-2.62.

Identified July 28, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of silica-rich solutions in cavities or fractures within volcanic or sedimentary rocks at low temperatures, often over millions of years.

Uses & applications

Used primarily in lapidary arts, ornamental carvings, and as a popular specimen for mineral and crystal collectors.

Geological facts

Chalcedony roses, sometimes called desert roses or barite roses depending on the exact mineral composition, form in distinctive rosette clusters that mimic flower petals.

Field identification & locations

Can be identified by its distinctive botryoidal or rosette habit, conchoidal fracture, and waxy luster. Commonly found in areas with past volcanic or hydrothermal activity.