mineral
Blue Lace Agate (Tumbled)
Silicon Dioxide (SiO2) - Variety of Chalcedony
Hardness: 6.5-7 Mohs; Color: Periwinkle blue with white or darker blue banding; Luster: Vitreous to waxy; Crystal structure: Trigonal (cryptocrystalline); Specific Gravity: 2.58-2.64
- Hardness
- 6
- Color
- Periwinkle blue with white or darker blue banding
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 Mohs; Color: Periwinkle blue with white or darker blue banding; Luster: Vitreous to waxy; Crystal structure: Trigonal (cryptocrystalline); Specific Gravity: 2.58-2.64
Formation & geological history
Forms in volcanic rocks through the deposition of silica from groundwater into cavities. Most notable specimens are sourced from the Karas Region of Namibia, originally discovered in the 1960s.
Uses & applications
Primarily used in jewelry (cabochons, beads), decorative carvings, and as a popular specimen for crystal healing and metaphysical collections.
Geological facts
Blue Lace Agate was first discovered by George Swanson in Namibia. It is considered one of the rarest and most sought-after varieties of agate due to its unique color and delicate banding.
Field identification & locations
Identify by its distinct light blue hue and fine, lacy white bands. Frequently found in Namibia and South Africa. Collectors should look for vibrant blue color and clear, intricate banding patterns.
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