Blue Anatase - St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France
 
Up to 7 mm large, lustrous and beautifully crystallized anatase on matrix. Even in daylight there is a blue shimmer from the inside of the crystals, which is clearly visible when backlit. 
A thumbnail of the most beautiful aesthetics and rarely intensely colored anatase.