mineral
Quartz with Iron Inclusions
Silicon Dioxide (SiO2) with Hematite/Limonite
Hardness: 7 on Mohs scale; Color: Clear to white with orange-brown iron staining; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture).
- Hardness
- 7 on Mohs scale
- Color
- Clear to white with orange-brown iron staining
- Luster
- Vitreous (glassy)
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Physical properties
Hardness: 7 on Mohs scale; Color: Clear to white with orange-brown iron staining; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture).
Formation & geological history
Formed from silica-rich hydrothermal fluids cooling in veins or cavities within various rock types. The orange staining occurs due to later oxidation of iron-bearing minerals that seeped into micro-fractures.
Uses & applications
Raw specimens are collected for decorative purposes, metaphysical use, or lapidary work. Pure quartz is used in glass making, electronics, and abrasives.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Specimens like this one, showing iron oxide 'staining,' are often referred to as 'Golden Healer' in the crystal community.
Field identification & locations
Identify in the field by its ability to scratch glass, its glassy luster, and its characteristic curved (conchoidal) fracture pattern. Found globally in almost all geological environments.
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