gemstone

Blue Lace Agate

Silicon Dioxide (Chalcedony variety), SiO2

Hardness: 6.5-7 on the Mohs scale; Color: Pale blue with white, lavender, or darker blue lacy bands; Luster: Waxy to vitreous; Crystal Structure: Trigonal (microcrystalline quartz); Cleavage: None (conchoidal fracture); Specific Gravity: 2.58-2.64

Hardness: 6
Color: Pale blue with white, lavender, or darker blue lacy bands
Luster: Waxy to vitreous

Identified August 5, 2026More gemstone →

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Physical properties

Formation & geological history

Formed within cavities of volcanic and metamorphic rocks through the deposition of silica-rich groundwater solutions in concentric or parallel layers over millions of years.

Uses & applications

Used primarily in lapidary arts, jewelry making, decorative carvings, and as a collector's mineral specimen.

Geological facts

Blue lace agate is often referred to as the 'stone of diplomacy' and is prized for its delicate, intricate lace-like patterns that are unique to each specimen.

Field identification & locations

Easily identified by its distinctive banded, pastel blue and white patterns and waxy luster. Commonly sourced from deposits in Namibia, South Africa, and the United States.

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