mineral
Crackled Quartz (Dyed)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale); Color: Multicolored (artificially dyed pink and yellow); Luster: Vitreous; Crystal structure: Trigonal; Key feature: Heavy internal fracturing/crackling.
- Hardness
- 7 (Mohs scale)
- Color
- Multicolored (artificially dyed pink and yellow)
- Luster
- Vitreous
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Physical properties
Hardness: 7 (Mohs scale); Color: Multicolored (artificially dyed pink and yellow); Luster: Vitreous; Crystal structure: Trigonal; Key feature: Heavy internal fracturing/crackling.
Formation & geological history
Natural clear quartz beads are subjected to thermal shock (heating and rapid cooling) to create internal fractures, then dyed with synthetic pigments to achieve the vibrant colors.
Uses & applications
Used primarily in costume jewelry, beadwork, and decorative accessories.
Geological facts
The 'crackle' effect is often called 'fire-and-ice' quartz. While the base material is a natural mineral, the appearance is entirely man-made through heat treatment.
Field identification & locations
Identify by looking for dye concentrated in the internal cracks and the specific 'shattered' look that doesn't reach the smooth outer surface of the bead.
