| General Information | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Fatal error: Uncaught mysqli_sql_exception: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb3_uca1400_ai_ci,COERCIBLE) for operation '=' in /big/var/www/gemdat/gemshow_class.php:690 Stack trace: #0 /big/var/www/gemdat/gemshow_class.php(690): mysqli->query() #1 /big/var/www/gemdat/gemshow_class.php(505): gemshow_class->showdata() #2 /big/var/www/gemdat/gemshow_class.php(1466): gemshow_class->showblock() #3 /big/var/www/gemdat/gshow.php(151): gemshow_class->do_optical() #4 {main} thrown in /big/var/www/gemdat/gemshow_class.php on line 690 | |||||||||||||||||