Flat face oval light opal gemstone with mossy pattern. Yellow-green stone cut oval, ideal for jewelry, art and collections (.471 x .2545 x .048 in., .75 ct.)
Back of flat face oval light opal gemstone with mossy pattern. Yellow-green stone cut oval.

Exquisite Crystal Opal Gemstone, .75 ct.

$44.32

Flat face oval crystal opal gemstone with mossy pattern. Yellow-green stone cut oval, ideal for jewelry, art and collections (.471 x .2545 x .048 in., .75 ct.)

SKU: CPO-1-4 Categories: , Tags: ,

Description

A typical opal can have 3% – 20% water content. Most opals used for jewelry have 1% to 6%.

Variety: Natural Light Opal Type 1
Body Tone: Light N8 (17)
Brightness: Bright
Transparency: Transparent
Colour: Yellow-Green
Hue: Normal Tones
Outline: Oval Shape
Profle: Flat Face
Origin: South Australia
Pattern: Named Pattern
Display: Weak or Blank 1 Angle
Distribution: 50 – 59%
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: .75 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

Opal gemstones are the most delicate because of their high water content.

View more crystal opals.

Additional information

Weight 45 g
Dimensions 9 × 6.5 × 1.5 in
Color

Gold, Green
Shape

Oval

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