Hydrophane
Ethiopia
1.50 carats
© Kosnar Gem Co.
Hydrophane 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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Hydrophane Gemstones by Size
This table shows distribution of Hydrophane 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:1.10 cts
Heaviest:3.63 cts
Average:1.87 cts
Total photos:5
Do you have a larger Hydrophane? Why not upload a photo?
| General Information | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| A variety or type of: | Common Opal, which is a variety of Opal | |||||||||
| Chemical Formula |
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| Hydrophane Treatments | ||||||||||
| Oils and parafins were used to delay the fading of play-of-colour in wet hydrophane. - Opal, Lithographie, 2007, p. 57 | ||||||||||
| Physical Properties of Hydrophane | ||||||||||
| 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 Hydrophane | ||||||||||
| 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) | |||||||||
| Colour | ||||||||||
| Colour (General) | All colours, play-of-colour, Gemstones of the world (2001) | |||||||||
| Transparency | Transparent,Translucent,Opaque, Gemstones of the world (2001) | |||||||||
| Crystallography of Hydrophane | ||||||||||
| Crystal System | Amorphous, Gemstones of the world (2001) | |||||||||
| Habit | Kidney- or grape-shaped aggregates, Gemstones of the world (2001) | |||||||||
| Further Information | ||||||||||
| Mineral information: | Hydrophane information at mindat.org | |||||||||