Dark opal with red, orange and green, cut round with a medium cabochon for jewelry, art or collection. (.3040 x .3030 x .1305 in. , 1.22 ct.)
Back of dark opal with red, orange and green, cut round with a medium cabochon for jewelry, art or collection. (.3040 x .3030 x .1305 in. , 1.22 ct.)

Unique Dark Opal Stone, 1.22 ct.

$496.94

Striking dark opal with red, orange and green, cut round with a medium cabochon for jewelry, art or collection. (.3040 x .3030 x .1305 in. , 1.22 ct.)

SKU: BOD-1-6 Categories: , Tags: ,

Description

Dark opals have a body tone scale of N5 to N6.

Variety: Natural Dark Opal Type 1
Body Tone: Dark N6 (11)
Brightness: Slightly Dull
Transparency: Translucent
Colour: Orange
Hue: Pale Tones
Outline: square, Round, Oblong
Profle: Medium Cabochon
Origin: Lighting Ridge
Pattern: Named Pattern
Display: Weak or Blank 2 Angles
Distribution: 40 – 49%
Inclusions: No Inclusions
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: 1.22 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 opals are a great choice if you don’t have a black opal budget.

View more dark opals.

Additional information

Weight 45 g
Dimensions 9.5 × 6.5 × 1.5 in
Shape

Round

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