mineral

Blue Lace Agate

Silicon Dioxide (SiO₂), a variety of Chalcedony

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

Hardness: 6
Color: Pale blue with white or darker blue banding
Luster: Vitreous to waxy

Identified March 25, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of silica from groundwater in the cavities of igneous rocks (volcanic lava). The layers (banding) are created by rhythmic precipitation of silica over long periods.

Uses & applications

Primarily used in jewelry (cabochons, beads), decorative carvings, and as a popular specimen for gemstone collectors and metaphysical enthusiasts.

Geological facts

Blue Lace Agate was first discovered in Namibia, which remains the source for the world's highest quality material. Unlike most agates which are hardy, this variety is prized specifically for its delicate, lace-like patterns.

Field identification & locations

Identify by its distinctive thin, wavy, light-blue layers. In the field, look for volcanic basalt host rocks. It is most commonly found in the Karas Region of Namibia.

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