Description
Variety: Natural Dark Opal Type 1
Body Tone: Black N6 (12)
Brightness: Very Bright
Transparency: Transparent
Color: Green-Blue
Hue: Rich Tones
Outline: Oval Shape
Profile: Low Cabochon
Origin: Lightning Ridge, Australia
Pattern: Blocky Pattern
Display: Weak or Blank at 1 Angle
Distribution: 70–79%
Inclusions: None
Scientific Details:
- Absorption: Spectra 660nm, 470nm
- Category: Mineraloid (Amorphous)
- Crystal System: Amorphous
- Composition: Hydrous silicon dioxide (SiO₂·nH₂O)
- Formation: Igneous Environments
- Fracture: Conchoidal – Uneven
- Lustre: Vitreous – Resinous
- Hardness (Mohs): 4.5–6.5
- Density: 2.09
- Specific Gravity: 1.98–2.25
- Transparency: Transparent to Opaque
- Tenacity: Brittle
Carat Weight: 4.23 CT
Carat Value: $458.04
Stone Value: $1937.51
Additional Features:
- Fluorescence: May phosphoresce in long or short wave
- Streak: White
- Polish: 2.15+0.08-0.09
This Lightning Ridge Opal, with its green-blue pinfire flashes and rich tones, is perfect for collectors or luxury jewelry enthusiasts. Its rarity and natural brilliance ensure a timeless and valuable investment.
Note: Opals are photographed in natural light to maintain authenticity. No filters or edits are applied to enhance the gemstone’s colors.
