mineral

Blue Lace Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

Hardness: 6.5-7 (Mohs scale), Color: Pale blue with white or darker blue bands, Luster: Vitreous to waxy, Crystal Structure: Trigonal/Microcrystalline, Cleavage: None, Specific Gravity: 2.60-2.65

Hardness: 6

Identified April 5, 2026More mineral →

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Physical properties

Hardness: 6.5-7 (Mohs scale), Color: Pale blue with white or darker blue bands, Luster: Vitreous to waxy, Crystal Structure: Trigonal/Microcrystalline, Cleavage: None, Specific Gravity: 2.60-2.65

Formation & geological history

Formed through the deposition of silica from groundwater in the cavities of igneous rocks (volcanic vesicles). The banding occurs as different layers of minerals crystallize over time within the cavity.

Uses & applications

Predominantly used in jewelry (cabochons, beads), ornamental carvings, and as a popular specimen for crystal healing and mineral collectors.

Geological facts

Famous for its calming appearance and intricate banding, it is considered one of the rarest agates. It was originally discovered in Namibia in the 1960s by George Swanson.

Field identification & locations

Identify by its distinct light blue color and delicate, wavy white lace-like banding. It is primarily found in the farm Ysterputs in Namibia. Collectors should look for sharp, clean bands and lack of artificial dyeing.

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