Beryl (Var: Emerald), Fluorite, Quartz, Microcline, Muscovite
Byrud Emerald Mines, Minnesund, Eidsvoll, Viken, Norway
A green emerald crystal in a matrix of dark blue fluorite, quartz, a micalike mineral and microcline from the Byrud Emerald Mines, Byrud, Minnesund, Eidsvoll, Akershus, Norway. Unlike most emeralds, the green colour comes from its vanadium content. FOV 4,27 mm. My catalog number 882. The specimen was collected by Burny Iversen decades ago by ...
© OT. Ljøstad