Quartz · Mohs 7
Clear Quartz: Identification, Meaning & Care
Clear quartz, or rock crystal, is colorless crystalline silica with a commonly hexagonal crystal habit.
Clear Quartz properties
- Formula
- SiO₂
- Mineral group
- Quartz
- Mohs hardness
- 7
- Color
- Colorless to cloudy white
- Transparency
- Transparent to translucent
- Luster
- Vitreous
- Cleavage / fracture
- None; conchoidal fracture
How to identify Clear Quartz
- Six-sided prisms and pointed terminations are common.
- Internal veils and fractures may produce rainbow flashes.
- It lacks the perfect cleavage typical of calcite or fluorite.
Clear Quartz care
Water
Brief rinsing is generally tolerated; dry fractures and settings carefully.
Light & heat
Generally light stable, although inclusions and treatments may respond differently.
Storage
Store separately from harder materials and cushion sharp edges, points, or cleavage-prone faces.
Traditional meaning
Often described as a symbol of focus or amplification in modern crystal traditions.
Traditional symbolism is presented as cultural history or personal practice, not as a scientific or medical claim.
Sources & further checking
- Mindat mineral database
- GIA Gem Encyclopedia
- RRUFF mineral database
- International Mineralogical Association
See our full methodology.