Rock Identifier
Ferruginous Quartz (Quartz (Silicon Dioxide) with Iron Inclusion, SiO2) — mineral
mineral

Ferruginous Quartz

Quartz (Silicon Dioxide) with Iron Inclusion, SiO2

Hardness: 7 on Mohs scale; Color: Orange-red to brown; Luster: Vitreous to greasy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Hardness
7 on Mohs scale
Color
Orange-red to brown
Luster
Vitreous to greasy
Identified More mineral

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Physical properties

Hardness: 7 on Mohs scale; Color: Orange-red to brown; Luster: Vitreous to greasy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (conchoidal fracture); Specific gravity: 2.65

Formation & geological history

Formed through hydrothermal processes or silica-rich precipitation where iron oxides (like hematite or goethite) are present during crystallization or enter through fractures later.

Uses & applications

Used primarily by mineral collectors, as decorative stones, and in metaphysical practices (often called 'Healer's Gold' or 'Hematoid Quartz').

Geological facts

The orange or carnivallian-like color is due to microscopic inclusions of iron oxide. It is basically rock crystal or milky quartz that has been 'stained' by nature's rust.

Field identification & locations

Identify in the field by its hardness (it will scratch glass) and its lack of cleavage. Look for it in areas with high quartz concentrations or near iron-rich ore deposits.