Rock Identifier
Blue Lace Agate (Polished Point) (Silicon Dioxide (SiO2) - Variety of Chalcedony) — mineral
mineral

Blue Lace Agate (Polished Point)

Silicon Dioxide (SiO2) - Variety of Chalcedony

Hardness: 6.5-7 on Mohs scale. Color: Pale blue with white or light gray banding. Luster: Vitreous to waxy. Crystal Structure: Trigonally-arranged microcrystalline quartz. Cleavage: None (Conchoidal fracture). Specific Gravity: 2.58-2.64.

Hardness
6
Color
Pale blue with white or light gray banding
Luster
Vitreous to waxy
Identified More mineral

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Physical properties

Hardness: 6.5-7 on Mohs scale. Color: Pale blue with white or light gray banding. Luster: Vitreous to waxy. Crystal Structure: Trigonally-arranged microcrystalline quartz. Cleavage: None (Conchoidal fracture). Specific Gravity: 2.58-2.64.

Formation & geological history

Formed in cavities in volcanic rock or ancient lava flows where silica-rich groundwater deposited layers of microcrystalline quartz over long periods. Most high-quality specimens originate from Namibia, Africa.

Uses & applications

Primarily used in jewelry, lapidary arts, and as ornamental or 'healing' crystals. It is popular for cabochons, beads, and carved points or wands.

Geological facts

Blue Lace Agate was originally discovered in Namibia by George Swanson in the 1960s. It is considered one of the rarest and most sought-after varieties of agate due to its delicate color banding.

Field identification & locations

Identify in the field by its distinct light blue and white wavy banding and its translucent nature. While often found in geodes, this specific piece has been cut and polished into a hexagonal point. It is commonly found in southwestern Africa and parts of Brazil.