Mineral

Red Aventurine (Strawberry Quartz)

Silicon Dioxide (SiO2) with inclusions of Hematite or Goethite

Hardness: 7 Mohs; Color: Reddish-brown, orange-red; Luster: Vitreous to dull; Crystal Structure: Trigonal (microcrystalline); Cleavage: None; Specific Gravity: 2.64-2.69; Notable for 'aventurescence' (a shimmering effect).

Hardness: 7 Mohs
Color: Reddish-brown, orange-red
Luster: Vitreous to dull

Identified April 4, 2026More mineral →

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Physical properties

Formation & geological history

Formed in magmatic and metamorphic environments where silica-rich fluids cool. The red color is derived from iron oxide inclusions (Hematite or Goethite) trapped within the quartz as it crystallizes.

Uses & applications

Primarily used for tumble stones, jewelry (beads, cabochons), carvings, and as a popular specimen for metaphysical or spiritual collectors.

Geological facts

While Green Aventurine is most common, Red Aventurine gets its distinct color from iron oxides. It is often referred to as 'Strawberry Quartz' in the gemstone trade, although true strawberry quartz has distinct needle-like inclusions.

Field identification & locations

Identify in the field by its hardness (will scratch glass), its red-orange hue, and the subtle shimmering reflections when rotated under a light source. Commonly found in Brazil, India, and Russia.

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