Rock Identifier
Rose Quartz with Girasol Effect (Silicon Dioxide (SiO2)) — mineral
mineral

Rose Quartz with Girasol Effect

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Pale pink to lavender; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Hardness
7 on Mohs scale
Color
Pale pink to lavender
Luster
Vitreous to waxy
Identified More mineral

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Physical properties

Hardness: 7 on Mohs scale; Color: Pale pink to lavender; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Formation & geological history

Formed in pegmatites through the slow cooling of silica-rich magma. The opalescent/girasol effect is caused by microscopic inclusions of dumortierite or rutile.

Uses & applications

Used primarily in lapidary arts, jewelry, decorative carvings, and as a popular metaphysical or collector's specimen.

Geological facts

While common rose quartz is often cloudy, specimens showing a girasol (milky/glowing) effect or asterism (star effect) are more sought after by collectors.

Field identification & locations

Identify by its characteristic pink hue, high hardness (it will scratch glass), and lack of cleavage. Often found in Brazil, Madagascar, and South Dakota.