mineral

Blue Lace Agate

Silicon dioxide (SiO2) - Chalcedony variety

Hardness: 6.5-7.0 (Mohs). Color: Light blue with white or darker blue banding. Luster: Vitreous to waxy. Crystal structure: Trigonal/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 28, 2026More mineral →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 6.5-7.0 (Mohs). Color: Light blue with white or darker blue banding. Luster: Vitreous to waxy. Crystal structure: Trigonal/Microcrystalline. Cleavage: None. Specific gravity: 2.58-2.64.

Formation & geological history

Formed through the deposition of silica-rich groundwater in the volcanic rock cavities (vesicles). Mostly associated with volcanic activity from the Precambrian to Cenozoic eras.

Uses & applications

Predominantly used for lapidary work, jewelry (cabochons and beads), and as a collector's stone or decorative healing crystal.

Geological facts

First discovered in Namibia in the 1960s. It is a rare variety of agate known specifically for its thin, delicate, lace-like blue and white banding which creates a cooling visual aesthetic.

Field identification & locations

Identify by its translucent blue layers and distinct white parallel banding. Commonly found in Namibia, South Africa, and parts of Brazil. Collectors should look for high-contrast banding and lack of fractures.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

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

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral