Crystal opal featuring green and blue in an oval cut gemstone with a medium cabochon, perfect for jewelry, art or collection (.3420 x .2555 x .1515 in., 1.3 ct.).
Back of crystal opal featuring green and blue in an oval cut gemstone with a medium cabochon, perfect for jewelry, art or collection (.3420 x .2555 x .1515 in., 1.3 ct.).

Vitreous Crystal Opal, 1.3 ct.

$319.58

Crystal opal featuring green and blue in an oval cut gemstone with a medium cabochon, perfect for jewelry, art or collection (.3420 x .2555 x .1515 in., 1.3 ct.).

SKU: BOD-2-26 Categories: , Tags: ,

Description

Crystal opal is usually all play of color due to no or very little potch. This gives it the ultimate 3D color-on-color effect.

Variety: Natural Light Opal Type 1
Body Tone: Light N8 (17)
Brightness: Average
Transparency: Transparent
Colour: Green-Blue
Hue: Slightly Pale Tones
Outline: Oval Shape
Profle: Medium Cabochon
Origin: Lighting Ridge
Pattern: Mixed Pattern
Display: Weak or Blank 1 Angle
Distribution: 50 – 59%
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: 1.30 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

Crystal opal free of inclusions can polished on the back of the gem to get full potential of play of color.

View more crystal opal.

Additional information

Weight 45 g
Dimensions 9 × 6.5 × 1.5 in
Color

Green, Blue
Shape

Oval

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