mineral
Quartz Heart or Arrowhead Shape
Silicon Dioxide (SiO2)
Hardness: 7 (Mohs scale); Color: Translucent cloudy pink/white; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (Conchoidal fracture)
- Hardness
- 7 (Mohs scale)
- Color
- Translucent cloudy pink/white
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 (Mohs scale); Color: Translucent cloudy pink/white; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None (Conchoidal fracture)
Formation & geological history
Formed from silica-rich hydrothermal fluids cooling in rock veins or cavities. This specific fragment appears to be a naturally eroded or human-modified piece of milky/rose quartz.
Uses & applications
Commonly used in jewelry, as metaphysical healing stones, or as decorative landscaping gravel. In industry, high-purity quartz is used in electronics and glass manufacturing.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. This specimen shows 'conchoidal fracture'—smooth, curved breaks typical of quartz and glass.
Field identification & locations
Identify by its ability to scratch glass and its lack of cleavage. It is found globally in igneous, metamorphic, and sedimentary environments.
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Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock
Granite
Granite (Phaneritic intrusive igneous rock)
igneous