Info: Andradite crystalizes as other garnets in the rhombooctoedrical form. Andradite has many colours, the black is called melanite, greenish yellow - topazolite, green - demantoite. Andradite can be transparent, translucent or opaque. This mineral has glassy, vitreous to diamond luster. It's a very hard garnet. Andradite is usualy created in methamorphic rocks, often accompanied by other iron or calcium minerals.
How to recognize: Andradite cannot be dissolved in acids, but it can be melted in fire.
Found: Andradite was found in Wurlitz (Germany), Pinzgau (Austria) and Val Malenco, Schneeberg, island Elba (Italy). In Czech Republic andradite was found in Vlaštějovice nad Sázavou.
Used for: Demantoite in jewelery.
| Crystal structure |
| Cubical |
| Hardness |
| 6,5 - 7 |
| Color |
| From green to yellow, various colours |
| Luster |
| Glassy to diamond |
