Quartz- Chalcopyrite

Dimensions: 7.3 x 4.8 x 5.3cm
Location: Mine in Giraud, La Gardette, Bourg d’oisans, Iséres, France
A very beautiful quartz  group with a perfect Chalcopyrite tetrahedron, a typical association of the Giraud mine.  An excellent collector's item.
 Dimensions without the acrylic base, which is supplied with the mineralogical specimen.
The mineral is not stuck to the base.