Dark opal stone with green and blue. This bold .45 ct. gemstone is cut oval with a medium cabochon for jewelry, art or collection (.2370 x .1910 x .1115 in., .45 ct.).
Back of oval cut dark opal stone with a medium cabochon, this bold .45 ct. gemstone is made for jewelry, art or collection (.2370 x .1910 x .1115 in., .45 ct.).

Fearless Dark Opal Stone, .45 ct.

$209.33

Dark opal stone with green and blue. This bold .45 ct. gemstone is cut oval with a medium cabochon for jewelry, art or collection (.2370 x .1910 x .1115 in., .45 ct.).

SKU: BOD-2-15 Categories: , ,

Description

Dark opal stones have a body tone scale of N5 to N6.

Variety: Natural Dark Opal Type 1
Body Tone: Dark N5 (9)
Brightness: Bright
Transparency: Transparent
Colour: Green-Blue
Hue: Normal Tones
Outline: Oval Shape
Profle: Medium Cabochon
Origin: Lighting Ridge
Pattern: Named Pattern
Display: Weak or Blank 1 Angle
Distribution: 70 – 79%
Inclusions: 1% of Face
MOHS Scale: 4.5-6.5
Polish: 2.15+0.08-0.09
R.F.I.: 1.450+0.020
Spec Gravity: 1.98 – 2.25
Carat Weight: .45 Carats
Formula: Si02nH20
Fracture: Conchoidal – Uneven
Lustre: Vitreous – Resinous
Flourescence: May phosphoresce in long /short wave
Absorption: Spectra 660nm, 470nm
Category: Mineraloid (Amorphorous)
Crystal Habit: Irregular ‘nodular’ Veins
Composition: Hydroussilicondioxide.3-21%/weight
Crystal Form: Amorphous, pseudomorph, botryoidal

Dark opal stones are a great choice if you don’t have a black opal budget.

View more dark opal stones.

Additional information

Weight 45 g
Dimensions 9 × 6.5 × 1.5 in
Color

Green, Blue
Shape

Oval

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