mineral

Blue Chalcedony Cube

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale); Color: semi-translucent grayish-blue; Luster: waxy to vitreous; Crystal structure: Trigonal (microcrystalline); Cleavage: None/Conchoidal fracture; Specific gravity: 2.58-2.64

Hardness: 6
Color: semi-translucent grayish-blue
Luster: waxy to vitreous

Identified July 14, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of silica-rich fluids in volcanic cavities or sedimentary layers. This specific piece has been man-shaped and polished into a cube from a natural rough stone.

Uses & applications

Primarily used for decorative purposes, crystal healing, meditation, and as a collector's specimen.

Geological facts

Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. Blue varieties are often referred to as 'Blue Lace Agate' when banded, but 'Blue Chalcedony' when the color is more uniform.

Field identification & locations

Identify by its waxy luster, translucency, and lack of visible crystals. Commonly found in Namibia, Turkey, and India. Collectors look for uniform color and high translucency.