Rock Identifier
Blue Lace Agate (Tumbled) (Silicon Dioxide (SiO2)) — mineral
mineral

Blue Lace Agate (Tumbled)

Silicon Dioxide (SiO2)

Hardness (6.5-7 Mohs), Color: Pale blue with wavy white bands, Luster: Waxy to vitreous, Crystal Structure: Trigonal (microcrystalline/cryptocrystalline), Translucent to opaque.

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Physical properties

Hardness (6.5-7 Mohs), Color: Pale blue with wavy white bands, Luster: Waxy to vitreous, Crystal Structure: Trigonal (microcrystalline/cryptocrystalline), Translucent to opaque.

Formation & geological history

Formed through the deposition of silica from groundwater in the cavities of igneous rocks (volcanic lavas). Most high-quality specimens originate from Namibia, Africa, and are millions of years old.

Uses & applications

Primarily used in jewelry, as cabochons, for ornamental carvings, and as a popular specimen for collectors and holistic stone enthusiasts.

Geological facts

Blue Lace Agate is known for its delicate, lace-like patterns. Unlike many blue stones, its color is natural and not usually dyed. It was first discovered in the 1960s in Namibia.

Field identification & locations

Identify by its distinct wavy banding and light blue hue. It is commonly found in gravel beds or volcanic regions in Namibia and South Africa. For collectors, look for high color contrast and fine banding.