Rock Identifier
Dyed Quartz Geode (Dyed crystalline quartz (Silicon Dioxide, SiO2)) — mineral
mineral

Dyed Quartz Geode

Dyed crystalline quartz (Silicon Dioxide, SiO2)

Hardness: 7 (Mohs scale); Color: Artificial teal/green center with white/clear outer shell; Luster: Vitreous to greasy; Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture.

Hardness
7 (Mohs scale)
Color
Artificial teal/green center with white/clear outer shell
Luster
Vitreous to greasy
Identified More mineral

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Physical properties

Hardness: 7 (Mohs scale); Color: Artificial teal/green center with white/clear outer shell; Luster: Vitreous to greasy; Crystal Structure: Hexagonal (trigonal); Cleavage: None/Conchoidal fracture.

Formation & geological history

Natural quartz geodes form in cavities of igneous or sedimentary rocks via hydrothermal deposition. However, this specific specimen has been artificially treated with dye to achieve the vibrant green center.

Uses & applications

Primarily used as decorative items, metaphysical healing crystals, or gift shop trinkets. Natural quartz is used in electronics and glass-making.

Geological facts

The vibrant, uniform green color seen here does not naturally occur in this pattern in quartz; natural green quartz (prasiolite) is typically a pale leek-green and rare. Most bright green geodes in gift shops are dyed.

Field identification & locations

Identify in the field by checking for natural quartz crystal formations; dyed specimens usually show dye concentration in cracks or unnatural hues like electric green. Found globally in volcanic or limestone regions.