
mineral
Quartz (Variety: Rose Quartz/Smoky Quartz mix)
Silicon Dioxide (SiO2)
Hardness: 7 (Mohs scale); Color: Pale pink/greyish white; Luster: Vitreous to greasy; Crystal Structure: Hexagonal (Trigonal); Cleavage: Indistinct/Conchoidal fracture; Specific Gravity: 2.65
- Hardness
- 7 (Mohs scale)
- Color
- Pale pink/greyish white
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 7 (Mohs scale); Color: Pale pink/greyish white; Luster: Vitreous to greasy; Crystal Structure: Hexagonal (Trigonal); Cleavage: Indistinct/Conchoidal fracture; Specific Gravity: 2.65
Formation & geological history
Formed through the cooling of silica-rich magma or in hydrothermal veins. Often found in pegmatites. This mineral can range from Precambrian to relatively recent Cenozoic formations.
Uses & applications
Used in jewelry (cabochons, beads), decorative carvings, and the electronics industry (as a source of silicon). Highly popular for mineral collecting and metaphysical uses.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Its pink color is often caused by trace amounts of titanium, iron, or manganese, while grey tones come from natural radiation during formation.
Field identification & locations
Identify in the field by its hardness (it will scratch glass and steel) and lack of cleavage (it breaks in curved, glassy facets). Common in granite outcrops and gravel beds worldwide.
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