
mineral
Tumbled Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on the Mohs scale. Color: White to translucent with brown, reddish, or amber iron-oxide staining. Luster: Vitreous (glassy) to greasy. Crystal structure: Trigonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.
- Hardness
- 7 on the Mohs scale
- Luster
- Vitreous (glassy) to greasy
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Physical properties
Hardness: 7 on the Mohs scale. Color: White to translucent with brown, reddish, or amber iron-oxide staining. Luster: Vitreous (glassy) to greasy. Crystal structure: Trigonal. Cleavage: None (conchoidal fracture). Specific Gravity: 2.65.
Formation & geological history
Formed in a wide variety of geological environments, frequently in hydrothermal veins, pegmatites, and as a primary component of igneous, metamorphic, and sedimentary rocks. The specimen shows signs of water-rolling or artificial tumbling, smoothing its edges.
Uses & applications
Used in jewelry, decorative items, lapidary arts, and metaphysical practices. Quartz is also heavily used in industry for electronics, glassmaking, and oscillators.
Geological facts
Quartz is one of the most abundant and widely distributed minerals on Earth's continental crust. Its piezoelectric properties make it essential in modern timekeeping and electronics.
Field identification & locations
Easily identified by its hardness (scratches glass), lack of cleavage, and glassy luster. Commonly found worldwide in riverbeds, beaches, and mineral deposits.
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Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
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Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
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Granite
Granite (Phaneritic intrusive igneous rock)
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Septarian Pebble
Septarian nodule / Concretion
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