mineral

Blue Lace Agate

Cryptocrystalline Quartz (SiO2)

Hardness: 6.5-7 (Mohs scale); Color: Light blue with white or darker blue banding; Luster: Vitreous to waxy; Crystal structure: Trigonal/Monoclinic (Microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.64.

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

Identified March 26, 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 (usually volcanic lava flows). The banding is caused by rhythmic crystallization over thousands of years.

Uses & applications

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

Geological facts

First discovered in Namibia in the 1960s. It is considered a rare variety of chalcedony due to its specific lace-like banding patterns. Most authentic Blue Lace Agate still comes from the original mine in Namibia.

Field identification & locations

Identify by its distinctive light blue color and delicate, wavy parallel bands. In the field, it is found inside volcanic nodules. Collectors should look for high contrast in banding and transparency.