rock crystals
Clear stone specimens
Rock crystals are clear, colorless quartz—the transparent variety of silicon dioxide prized since antiquity for jewelry, carvings, and decorative objects.
The term emphasizes the mineral's glass-like clarity, distinguishing it from milky or colored quartz varieties: a pendant carved from rock crystal, rock crystal chandeliers.
- hardFirm or demanding
- mineralNaturally formed crystalline solid
- clearWithout obstruction or fog
- quartzCrystalline silicon dioxide
- roughUneven in surface
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