Ulexite 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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Ulexite Gemstones by Size
This table shows distribution of Ulexite 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:4.71 cts
Heaviest:8.89 cts
Average:6.73 cts
Total photos:3
Do you have a larger Ulexite? Why not upload a photo?
| General Information | ||||||||||||||||||
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| Chemical Formula |
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| Physical Properties of Ulexite | ||||||||||||||||||
| Mohs Hardness | 2, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Specific Gravity | 1.65 to 1.99, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Tenacity | Brittle, Handbook of mineralogy (2001) | |||||||||||||||||
| Cleavage Quality | Perfect, Gems, Sixth Edition (2006) | |||||||||||||||||
| Fracture | Uneven, Handbook of mineralogy (2001) Uneven across fiber groups | |||||||||||||||||
| Refractive Index | 1.491 to 1.520, Blue Chart Gem Identification (2010) More from other references | |||||||||||||||||
| Optical Character | ||||||||||||||||||