mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Hardness: 7 (Mohs); Color: Milky white to tan with reddish-brown staining; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Hardness: 7 (Mohs)
Color: Milky white to tan with reddish-brown staining
Luster: Vitreous to waxy

Identified May 9, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs); Color: Milky white to tan with reddish-brown staining; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture; Specific gravity: 2.65

Formation & geological history

Formed from silica-rich hydrothermal fluids or within igneous and metamorphic rocks. This specimen is a water-worn river pebble that has acquired iron oxide staining from the surrounding environment over geological time.

Uses & applications

Used in gemstone tumbled sets, chakra healing collections, and as a raw material for silicon production in various industries. Non-gem grade quartz is also used in construction aggregates.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Iron-stained quartz is often mistakenly called 'Hematoid Quartz' or 'Fire Quartz' in metaphysical circles.

Field identification & locations

Identify by its hardness (it will scratch glass) and lack of cleavage. Commonly found in riverbeds, beaches, and gravel pits worldwide. Collectors look for pieces with interesting patterns or high transparency.

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