
Australia
5.62 carats
© irocks.com
| General Information | |||||||
|---|---|---|---|---|---|---|---|
| Chemical Formula |
| ||||||
| Physical Properties of Gaspéite | |||||||
| Mohs Hardness | 4.5 to 5, Gemmological Tables (2004) More from other references | ||||||
| Specific Gravity | 3.21, Gemmological Tables (2004) More from other references | ||||||
| Cleavage Quality | Perfect, Gemstones (2009) | ||||||
| Fracture | Uneven, Gemstones (2009) | ||||||
| Optical Properties of Gaspéite | |||||||
| Refractive Index | 1.610 to 1.830, Gemmological Tables (2004) More from other references | ||||||
| Optical Character | Uniaxial/-, Gemmological Tables (2004) More from other references | ||||||
| Birefringence | 0.220, Gemmological Tables (2004) More from other references | ||||||
| Pleochroism | Nil, Gemstones (2009) | ||||||
| Dispersion | Nil, Gemstones (2009) | ||||||
| Colour | |||||||
| Colour (General) | Yellowish-green, green, Gemmological Tables (2004) More from other references | ||||||
| Transparency | Translucent, Gemmological Tables (2004) More from other references | ||||||
| Lustre | Vitreous, Gemstones (2009) | ||||||
| Crystallography of Gaspéite | |||||||
| Crystal System | Trigonal, Gemmological Tables (2004) More from other references | ||||||
| Habit | Nodular concretions or as aggregates of rhombic crystals, Gems, Sixth Edition (2006) More from other references | ||||||
| Geological Environment | |||||||
| Where found: | Gaspéite is uncommon, occurring as a secondary mineral in a Ni-sulphide vein in metamorphosed siliceous dolostone, Gems, Sixth Edition (2006) | ||||||
| Further Information | |||||||
| Mineral information: | Gaspéite information at mindat.org | ||||||
| Significant Gem Localities | |||||||
| |||||||