Rolling Flash Opal, .17 ct.

$55.67

Lightning Ridge rolling flash opal with green, yellow and blue. This gemstone is cut oval for custom jewelry, art and collections (.1675 x .1405 x .0810 in., .17 ct., medium cabochon).

SKU: BOD-2-6 Categories: , Tags: ,

Description

Rolling Flash opal patterns roll across the stone face creating a color show. This effect is called Cat’s Eye in other gemstones.

Variety: Natural Light Opal Type 1
Body Tone: Light N8 (17)
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: Over 80%
Inclusions: Loupe Visible Only
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: .17 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

An opal refracts natural light to reveal thousands of different hues and colors.

View more crystal opals.

Additional information

Weight 45 g
Dimensions 9 × 6.5 × 1.5 in
Shape

Oval