Opal, Opal (Var: Precious Opal)
Northern Lights claims, Troitsa Peak, Whitesail Range, Omineca Mining Division, British Columbia, Canada
Opal; 4.7 cm along top edge. Northern Lights claims, Troitsa Peak, Whitesail Range, Omineca Mining Division, British Columbia, Canada. Private collection; Mark Mauthner photo.
© Mark Mauthner