sedimentary

Blue Lace Agate

Cryptocrystalline Quartz (SiO2) with trace minerals

AI-generated identification · may be incorrect

Hardness: 6.5-7 Mohs; Color: Pale blue with white or darker blue banding; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Specific Gravity: 2.60 to 2.64.

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

Identified May 8, 2026More sedimentary →

Explore Blue Lace Agate in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Hardness: 6.5-7 Mohs; Color: Pale blue with white or darker blue banding; Luster: Vitreous to waxy; Crystal Structure: Trigonal (microcrystalline); Specific Gravity: 2.60 to 2.64.

Formation & geological history

Formed primarily within volcanic rock cavities (vugs) through the deposition of silica from groundwater. The distinct banding is caused by successive layers of silica-rich fluids over geological time periods.

Uses & applications

Used extensively in the jewelry industry for beads, cabochons, and carvings. Also popular as a collector mineral and in metaphysical practices for its calming aesthetic.

Geological facts

Blue Lace Agate was first discovered in Namibia, which remains the source for the world's highest quality material. Unlike color-enhanced agates, its blue hue is natural and stable.

Field identification & locations

Identified by its characteristic delicate, wavy blue and white bands. In the field, look for chalcedony nodules in volcanic host rocks. Avoid pieces that look too uniformly bright blue as they may be dyed.