mineral

Quartz with Iron Inclusions

SiO2

AI-generated identification · may be incorrect

Hardness: 7 on Mohs scale. Color: Clear, white, or cloudy with red, orange, or brown staining from iron oxide. Luster: Vitreous (glassy). Crystal structure: Trigonal. Cleavage: None, exhibits conchoidal fracture. Specific gravity: 2.65.

Hardness: 7 on Mohs scale
Luster: Vitreous (glassy)

Identified August 25, 2026More mineral →

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Physical properties

Formation & geological history

Forms in igneous, metamorphic, and sedimentary rocks. The iron inclusions (hematite or limonite) form during crystallization or are introduced later through fluids.

Uses & applications

Collected for its aesthetic appeal, sometimes used in lapidary for cabochons or tumbled stones.

Geological facts

Quartz is one of the most abundant minerals on Earth's surface. The presence of iron gives it a distinctive 'rusty' appearance, often referred to as 'hematoid quartz' or 'ferruginous quartz'.

Field identification & locations

Identified by its hardness (scratches glass), glassy luster, and the characteristic red/orange staining. Commonly found in riverbeds, beaches, and quartz veins globally.