Clear Quartz
| Also known as | Quartz (Quartz family) |
|---|---|
| Colour | Clear, White |
| Mohs hardness | 7 – lower in impure varieties (defining mineral) |
| Lustre | Vitreous – waxy to dull when massive |
| Streak | White |
| Crystal system | α-quartz: trigonal β-quartz: hexagonal |
| Transparency | Transparent to nearly opaque |
| Cleavage | none |
| Fracture | Conchoidal |
| Chemical formula | SiO 2 |
| Specific gravity | 2.65; variable 2.59–2.63 in impure varieties |
What is Clear Quartz?
Quartz is a hard mineral composed of silica (silicon dioxide). Its atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen atom being shared between two tetrahedra, giving an overall chemical formula of SiO2. Therefore, quartz is classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most common mineral or mineral group in Earth's lithosphere, comprising about 12% by mass.
How to identify Clear Quartz
- Lustre: Vitreous – waxy to dull when massive.
- Hardness: Mohs 7 – lower in impure varieties (defining mineral) — hard enough to scratch glass.
- Streak: White.
- Habit: α-quartz: trigonal β-quartz: hexagonal crystal system.
Clear Quartz value
Based on 100 recent eBay sold listings, a raw / cluster Clear Quartz typically sells for $11–$31 (about $0.02–$0.07 per gram for raw material). After eBay fees a seller nets roughly $19 on a median piece.
| Recently sold | Weight | Sold | Date |
|---|---|---|---|
| Large Clear Quartz Crystal Natural Point Specimen | — | $20 | 2026-06-22 |
| 2.9LB Natural big sized clear Quartz crystal with Black tourmaline insidemineral | 1315 g | $31 | 2026-06-21 |
| Natural Herkimer Diamond Enhydro Crystal clear&bright Gem&moving water drop 16CT | 3 g | $23 | 2026-06-21 |
| Natural Herkimer Diamond Enhydro Crystal Gem&clear big moving water drop 17G | 17 g | $18 | 2026-06-21 |
| Natural Herkimer Diamond Enhydro Crystal clear Gem&big moving water drop 8.4G | 8 g | $22 | 2026-06-21 |
| 580G Natural Clear and Amethyst Cluster Crystal Specimen Energy Healing Reiki | 580 g | $13 | 2026-06-21 |
Typical recently-sold prices, 2026-06. Condition, size and quality vary widely, so this is an estimate, not an appraisal. See current sold listings on eBay ↗. Full value guide · how we work this out.
