| General Information | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Formula |
| |||||||||||||
| Physical Properties of Ekanite | ||||||||||||||
| Mohs Hardness | 6 to 6.5, Blue Chart Gem Identification (2010) More from other references | |||||||||||||
| Specific Gravity | 3.28 to 3.32, Blue Chart Gem Identification (2010) More from other references | |||||||||||||
| Cleavage Quality | Distinct, Gemstones (2009) | |||||||||||||
| Fracture | Uneven, Gemstones (2009) | |||||||||||||
| Optical Properties of Ekanite | ||||||||||||||
| Refractive Index | 1.593 to 1.596, Blue Chart Gem Identification (2010) More from other references | |||||||||||||
| Optical Character | Uniaxial/-, Gemmological Tables (2004) More from other references | |||||||||||||
| Birefringence | 0.001, Gemmological Tables (2004) More from other references | |||||||||||||
| Chatoyancy | (Rare) star 4, Blue Chart Gem Identification (2010) | |||||||||||||
| Colour | ||||||||||||||
| Colour (General) | Green, yellow-green, brownish, Gemmological Tables (2004) More from other references | |||||||||||||
| Transparency | Transparent,Translucent, Gemmological Tables (2004) More from other references | |||||||||||||
| Lustre | Vitreous, Gemstones (2009) | |||||||||||||
| Crystallography of Ekanite | ||||||||||||||
| Crystal System | Tetragonal, Blue Chart Gem Identification (2010) Metamict, originally tetragonalMore from other references | |||||||||||||
| Habit | Poorly formed prismatic crystals, Gems, Sixth Edition (2006) More from other references | |||||||||||||
| Inclusions in Ekanite | ||||||||||||||
| Black thorite crystals with radiation halos - Blue Chart Gem Identification, Herve Nicolas Lazzarelli, 2010, p 5 | ||||||||||||||
| Further Information | ||||||||||||||
| Mineral information: | Ekanite information at mindat.org | |||||||||||||
| Significant Gem Localities | ||||||||||||||
| ||||||||||||||