Fluorite on Muscovite and Ferberite
Panasqueira Mines, Covilha, Castelo Branco, Portugal
Miniature, 4.4 x 3.3 x 2.5 cm

Fluorite perched on muscovite and ferberite, makes for a rare combination specimen from this famous old mine. It is a modified fluorite crystal, just under 2 cm across, with sharp purple phantoms inside a yellow outer layer. When backlit well, you really see the sharp cubic phantom inside!