Crystal opal boasting purple, green and orange. This gemstone is oval cut with a medium cabochon for jewelry, art or collection (.4340 x .2605 x .1560 in., 1.84 ct.).
Back of crystal opal boasting purple, green and orange. This gemstone is oval cut with a medium cabochon for jewelry, art or collection (.4340 x .2605 x .1560 in., 1.84 ct.).

Calm Crystal Opal, 1.84 ct.

$263.27

Crystal opal boasting purple, green and orange. This gemstone is oval cut with a medium cabochon for jewelry, art or collection (.4340 x .2605 x .1560 in., 1.84 ct.).

SKU: BOD-2-24 Categories: , Tags: ,

Description

Crystal Opals are a semi-transparent type of opal – when held up to light, distorted images and light can be seen through them.

Variety: Natural Dark Opal Type 1
Body Tone: Dark N6 (12)
Brightness: Average
Transparency: Transparent
Colour: Blue-Green
Hue: Normal Tones
Outline: Oval Shape
Profle: Medium Cabochon
Origin: Lighting Ridge
Pattern: Mixed Pattern
Display: Weak or Blank 1 Angle
Distribution: 60 – 69%
Inclusions: 5% 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: 1.84 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 opals are the closest rival in value and quality to black opal.

View more crystal opal.

Additional information

Weight 45 g
Dimensions 9 × 6.5 × 1.5 in
Color

Orange, Green, Purple
Shape

Oval

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