gemstone

Amethyst and Green Aventurine (Tumbled Gemstones set in a wand)

Quartz (SiO2) varieties - Amethyst and Aventurine

Mohs hardness: 7; Color: Purple (Amethyst) and Pale Green (Green Aventurine); Luster: Vitreous to waxy; Crystal structure: Hexagonal/Trigonal; Cleavage: None; Specific gravity: ~2.65.

Hardness: 7
Color: Purple (Amethyst) and Pale Green (Green Aventurine)
Luster: Vitreous to waxy

Identified July 22, 2026More gemstone →

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Physical properties

Mohs hardness: 7; Color: Purple (Amethyst) and Pale Green (Green Aventurine); Luster: Vitreous to waxy; Crystal structure: Hexagonal/Trigonal; Cleavage: None; Specific gravity: ~2.65.

Formation & geological history

Formed in hydrothermally active igneous and metamorphic environments within quartz veins and geodes. Amethyst gains its purple color from iron inclusions and natural irradiation, while Green Aventurine gets its color and shimmery aventurescence from tiny inclusions of fuchsite mica.

Uses & applications

Used in gemstone crafting, wire wrapping, decorative art, custom wands, jewelry, and metaphysical or display collections.

Geological facts

Quartz is one of the most abundant minerals on Earth, but its colored varieties like amethyst and green aventurine are highly prized for ornamental and lapidary arts.

Field identification & locations

Identified by hardness (scratches glass), glass-like luster, and characteristic colors. Common worldwide, with major deposits in Brazil, Uruguay, India, and Russia.

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