Hydronium Jarosite
Formula | (H3O)Fe3+ 3 (SO4)2(OH)6 |
Origin | Lavrion (Greece) |
Description | golden yellow massive piece of many small hydronium jarosite crystals |
Classification (Lapis) | Sulfates |
Crystal System | hexagonal |
Hardness | 4,0 – 4,5 |
Colour | bright yellow to pale yellow |
Streak | white |
Luminescence | none observed |
Luster | dull |
Transparency (Opacity) | translucent |
Cleavage | perfect |
Fracture | uneven to conchoidal |
Magnetism | negative |
Geological Setting | the oxidized zone of rapidly weathering sulfide-bearing rocks |
Specific Gravity | 3,01 g/cm3 |