From : Nickenicher Sattel,  Nickenich,  Eifel, Germany
 
The iron-silicate Fayalite occurs in brown well shaped crystals with a rich paragenesis : octahedral Magnetite-crystals, green Pyroxene crystals, tabular Phlogopite-crystals, and some more.
 
Dimensions : 2 x 1.8 x 1.5