
mineral
Blue Lace Agate
Cryptocrystalline Quartz (SiO2)
AI-generated identification · may be incorrectHardness: 6.5-7 (Mohs scale); Color: Light blue with white or darker blue banding; Luster: Vitreous to waxy; Crystal structure: Trigonal/Monoclinic (Microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.64.
- Hardness
- 6
- Color
- Light blue with white or darker blue banding
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 (Mohs scale); Color: Light blue with white or darker blue banding; Luster: Vitreous to waxy; Crystal structure: Trigonal/Monoclinic (Microcrystalline); Cleavage: None; Specific Gravity: 2.58-2.64.
Formation & geological history
Formed through the deposition of silica from groundwater in the cavities of igneous rocks (usually volcanic lava flows). The banding is caused by rhythmic crystallization over thousands of years.
Uses & applications
Predominantly used in jewelry (cabochons, beads), decorative carvings, and as a popular specimen for gemstone collectors and metaphysical enthusiasts.
Geological facts
First discovered in Namibia in the 1960s. It is considered a rare variety of chalcedony due to its specific lace-like banding patterns. Most authentic Blue Lace Agate still comes from the original mine in Namibia.
Field identification & locations
Identify by its distinctive light blue color and delicate, wavy parallel bands. In the field, it is found inside volcanic nodules. Collectors should look for high contrast in banding and transparency.
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