mineral

Blue Lace Agate

Silicon Dioxide (SiO2) - Chalcedony variety

Hardness: 6.5-7 on Mohs scale; Color: Blue, white, and lavender banding; Luster: Vitreous to waxy; Crystal Structure: Trigonal (Microcrystalline); Specific Gravity: 2.60-2.65

Hardness: 6
Color: Blue, white, and lavender banding
Luster: Vitreous to waxy

Identified June 22, 2026More mineral →

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Physical properties

Hardness: 6.5-7 on Mohs scale; Color: Blue, white, and lavender banding; Luster: Vitreous to waxy; Crystal Structure: Trigonal (Microcrystalline); Specific Gravity: 2.60-2.65

Formation & geological history

Formed in volcanic rocks (typically basalts) through the deposition of silica from groundwater in cavities or vesicles. Most specimens date back to the Cretaceous or Cenozoic eras.

Uses & applications

Frequently used in jewelry, lapidary arts, decorative figurines, and as a popular metaphysical pocket stone.

Geological facts

The most famous deposits are found in Namibia. It was first discovered in the mid-1960s by George Swanson and has become one of the most popular gemstones for its calming blue hue.

Field identification & locations

Identify by its distinct, delicate blue and white circular or lacy bands and translucent quality. Found primarily in Africa, Brazil, and parts of the USA. Collectors look for high contrast in the banding.

Other mineral specimens

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Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Schist

Metamorphic

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral