gemstone
Faceted Clear Gemstone (Likely Quartz or Cubic Zirconia)
Silicon Dioxide (SiO2) or Zirconium Dioxide (ZrO2)
Hardness: 7 (Quartz) to 8.5 (CZ); Color: Colorless/Transparent; Luster: Vitreous to Adamantine; Crystal System: Hexagonal or Cubic; High dispersion in CZ.
- Hardness
- 7 (Quartz) to 8
- Color
- Colorless/Transparent
- Luster
- Vitreous to Adamantine
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Physical properties
Hardness: 7 (Quartz) to 8.5 (CZ); Color: Colorless/Transparent; Luster: Vitreous to Adamantine; Crystal System: Hexagonal or Cubic; High dispersion in CZ.
Formation & geological history
Natural quartz forms in hydrothermal veins and pegmatites; synthetic CZ is lab-grown through a cold-crucible process.
Uses & applications
Jewelry (rings, earrings, necklaces), decorative accents, or industrial abrasives.
Geological facts
While clear quartz is one of Earth's most abundant minerals, high-quality faceted stones are used to simulate diamonds. Cubic Zirconia is the most common synthetic diamond simulant.
Field identification & locations
Check for 'fire' and weight; CZ is significantly denser than quartz and natural diamond. Quartz will not show the same rainbow dispersion.
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