IMA mineral species Healing crystal
Quartz
SiO₂
Mineral made of silicon and oxygen.
Properties
| Chemical formula | SiO₂ |
|---|---|
| Elements | Si, O |
| Crystal system | Trigonal |
| Mohs hardness | 7 |
| Density | 2.65 g/cm³ |
| Streak | — |
| Color | — |
| Fracture | conchoidal fracture |
| IMA symbol | Qz |
| Nickel–Strunz class | 4.DA.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Varieties & related stones
- Agate
- Amethyst
- Ametrine
- Arkansas Quartz
- Aventurine
- Chalcedony
- Citrine
- Herkimer diamond
- Iris quartz
- Jacinto de Compostela
- Keokuk Geode
- Las Choyas Geode
- Moroccan Geode
- Petroleum Quartz
- Prase
- Prasiolite
- Quartz Geode
- Rock crystal
- Rose quartz
- Rutilated quartz
- Smoky quartz
- Spirit Quartz
- Star quartz
- Strawberry Quartz
- Tiger's eye
- Tourmalinated Quartz
Learn more
- Quartz on Mindat.org
- Wikipedia article
- Wikidata item Q43010 (source of this page's data – you can correct it there)
IMA mineral species
7–8
Trigonal
OrangeYellowGreenBluePurplePinkBrownBlackWhite & Clear
Crown
Healing crystal




