Description
Opal Details:
- Variety: Natural Dark Opal Type 1
- Body Tone: Black N5 (10)
- Brightness: Slightly Bright
- Transparency: Transparent
- Colour: Green-Blue
- Hue: Normal Tones
- Outline: Oval Shape
- Profile: Low Cabochon
- Origin: Lightning Ridge
- Pattern: Blocky Pattern
- Display: Weak or Blank at 1 Angle
- Distribution: 50 – 59%
- Inclusions: No Inclusions
Physical Properties:
- Absorption: Spectra 660nm, 470nm
- Birefringence: None
- Category: Mineraloid (Amorphous)
- Cleavage: None
- Crystal Form: Amorphous pseudomorph, botryoidal
- Crystal Habit: Irregular ‘nodular’ veins
- Crystal System: Amorphous
- Composition: Hydrous silicon dioxide (3-21% weight)
- Demand: (1-3)1
- Density: 2.09
- Diapheny: Opaque/translucent/transparent
- Fluorescence: May phosphoresce in long/short wave
- Formula: SiO₂·nH₂O
- Formation: Igneous environments
- Fracture: Conchoidal – Uneven
- Group: Silicates; Tectosilicates; Silica Group
- Lustre: Vitreous – Resinous
- Mohs Scale: 4.5 – 6.5
- Polish: 2.15 ± 0.08-0.09
- Popularity: (4)1
- Prevalence: (1-3)1
- Refractive Index (R.I.): 1.450 ± 0.020
- Specific Gravity: 1.98 – 2.25
- Streak: White
- Solubility: Methanol, Humic, Hydrofluoric Acid
- Transparency: Transparent to opaque
- Tenacity: Brittle
- Type: Igneous, Sedimentary, Metamorphic
Valuation:
- Carat Weight: 3.04 Carats
- Price Per Carat:
- Price: $523.46
- Total Opal Value:
- Upper Value: $1591.30
This remarkable 3.04-carat natural dark opal is a treasure from the famed Lightning Ridge mines. With its bright green-blue tones and mixed pattern, this transparent opal radiates sophistication and elegance. Its low cabochon oval shape enhances its natural beauty, making it an ideal centerpiece for fine jewelry.
As a Type 1 dark opal with no visible inclusions, this gemstone is highly desirable for collectors and jewelers seeking high-quality stones with a unique pattern and vibrant colors.
Note: All opals are photographed and filmed without any editing or adjustments. The true colors and stunning patterns are even more remarkable in person, ensuring this opal will captivate you upon receipt.
