mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: Translucent white to tan/yellow due to iron oxide staining; Luster: Vitreous (glassy) to greasy; Crystal Structure: Trigonal (hexagonal prisms); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.

Hardness: 7 on Mohs scale
Color: Translucent white to tan/yellow due to iron oxide staining
Luster: Vitreous (glassy) to greasy

Identified July 14, 2026More mineral →

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Physical properties

Formation & geological history

Commonly forms in hydrothermal veins, pegmatites, and as a primary mineral in igneous rocks like granite. This specimen appears water-worn or weathered, likely found in a riverbed or surface deposit.

Uses & applications

Used in glass manufacturing, electronics (piezoelectric properties), abrasives, and as a gemstone or decorative collector's piece.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Iron-stained quartz is often called 'Golden Healer' in metaphysical circles, though geologically it is simply quartz with limonite or hematite inclusions.

Field identification & locations

Identify by its hardness (it can scratch glass and steel), lack of cleavage, and waxy to glassy appearance. It is found globally in nearly all geological environments.