mineral
Blue Lace Agate
Chalcedony (SiO2)
Hardness 6.5-7, Light blue with white banding, Waxy to vitreous luster, Microcrystalline quartz, No cleavage, Specific gravity 2.58-2.64
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Physical properties
Hardness 6.5-7, Light blue with white banding, Waxy to vitreous luster, Microcrystalline quartz, No cleavage, Specific gravity 2.58-2.64
Formation & geological history
Forms as nodules or geodes in volcanic rocks from silica-rich fluids over millions of years
Uses & applications
Primarily used in jewelry making, ornamental carvings, and holistic practices
Geological facts
Most blue lace agate in the world comes from a single mine in Namibia. It is highly valued for its delicate, lacy bands of pale blue and white.
Field identification & locations
Identify by its distinctive light blue color and intricate white lace-like banding. Common locations include Namibia and South Africa. Collectors look for uniform banding and good color.
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Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Schist
Schist
Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
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Nephrite
Mineral/Rock