White Opal
Australia
11.40 carats
© Palagems
White Opal Gemstones by Colour
This table shows the variety of hues this gemstone can be found in. Click on a photo for more information.
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White Opal Gemstones by Size
This table shows distribution of White Opal gemstone sizes that are listed on this site. This can give a good indication as to the general availability of this gemstone in different sizes.
Contributed photos
Lightest:2.97 cts
Heaviest:11.40 cts
Average:7.09 cts
Total photos:3
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| General Information | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A variety or type of: | Precious Opal, which is a variety of Opal | |||||||||||||
| Chemical Formula |
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| Physical Properties of White Opal | ||||||||||||||
| Mohs Hardness | 5.5 to 6.5, Gemstones of the world (2001) | |||||||||||||
| Specific Gravity | 1.98 to 2.50, Gemstones of the world (2001) | |||||||||||||
| Tenacity | Brittle, Gemstones of the world (2001) | |||||||||||||
| Cleavage Quality | None, Gemstones of the world (2001) | |||||||||||||
| Fracture | Conchoidal,Splintery, Gemstones of the world (2001) | |||||||||||||
| Optical Properties of White Opal | ||||||||||||||
| Refractive Index | 1.37 to 1.52, Gemstones of the world (2001) | |||||||||||||
| Birefringence | None, Gemstones of the world (2001) | |||||||||||||
| Pleochroism | Absent, Gemstones of the world (2001) | |||||||||||||
| Dispersion | None, Gemstones of the world (2001) | |||||||||||||
| Colour | ||||||||||||||
| Colour (General) | White basic colour, play-of-colour, Gemstones of the world (2001) | |||||||||||||
| Transparency | Translucent,Opaque, Gemstones of the world (2001) | |||||||||||||
| Fluorescence & other light emissions | ||||||||||||||
| Fluorescence (General) | White, bluish, brownish, greenish, Gemstones of the world (2001) | |||||||||||||
| Crystallography of White Opal | ||||||||||||||
| Crystal System | Amorphous, Gemstones of the world (2001) | |||||||||||||
| Habit | Kidney- or grape-shaped aggregates, Gemstones of the world (2001) | |||||||||||||
| Further Information | ||||||||||||||
| Mineral information: | White Opal information at mindat.org | |||||||||||||
| Significant Gem Localities | ||||||||||||||
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