mineral

Fire Quartz (Hematoid Quartz)

Quartz with Hematite inclusions (SiO2 + Fe2O3)

Hardness: 7 on Mohs scale; Color: Clear to white with reddish-brown, orange, or pink inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Specific Gravity: 2.65

Hardness: 7 on Mohs scale
Luster: Vitreous

Identified June 19, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: Clear to white with reddish-brown, orange, or pink inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Specific Gravity: 2.65

Formation & geological history

Formed through the crystallization of silica-rich hydrothermal fluids where iron oxides like hematite or limonite are present, coating or becoming trapped within the quartz as it grows.

Uses & applications

Primarily used in jewelry, lapidary arts, and as a collector's specimen. It is also popular in metaphysical circles as a grounding and balancing stone.

Geological facts

The 'fire' appearance is caused by oxidized iron (rust) trapped inside the crystal. It is often found in massive form or as points, and the high-quality beads shown are faceted to maximize the internal reflections of the inclusions.

Field identification & locations

Identify by looking for characteristic red or brown 'fleaks' or clouds inside transparent quartz that do not rub off. Commonly found in Brazil, Madagascar, and the United States.

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Arenite (SiO2 based)

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Nephrite Jade

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Mineral/Rock

Banded Gneiss (River Rock/Pebble)

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Metamorphic Rock

Green Apatite on Albite

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mineral