Description
Opal gemstones are a one-of-a-kind treasure. No two opals are alike!
Variety: Natural White Opal Type 1
Body Tone: Light N8 (17)
Brightness: Dull
Transparency: Translucent
Colour: Orange-Green
Hue: Pale Tones
Outline: Oval Shape
Profle: Medium Cabochon
Origin: South Australia
Pattern: Mossy Pattern
Display: Weak or Blank 2 Angles
Distribution: 50 – 59%
Inclusions: 1% 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: 1.40 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