mineral

Green Quartz (Prasiolite/Adventurine)

Silicon Dioxide with inclusions (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale; Color: Pale to deep green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None (Conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Color: Pale to deep green
Luster: Vitreous (glassy)

Identified June 5, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Pale to deep green; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None (Conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed in hydrothermal veins or as a secondary mineral in volcanic rock cavities. It can be found in metamorphic environments or sedimentary deposits as weathered grains.

Uses & applications

Primarily used in jewelry as a gemstone, decorative carvings, and as a collector's specimen.

Geological facts

Natural green quartz is actually quite rare in nature; most commercial 'green quartz' is amethyst that has been heat-treated. When naturally occurring due to inclusions like fuchsite, it is known as Aventurine.

Field identification & locations

Identify by its hardness (scratches glass) and lack of cleavage. Can be found in riverbeds or near quartz veins. Look for a glassy luster and characteristic green hue.