5690 Zircon, Biotite, Taratimi Bay (Crater Bay), Mayor Island (Tuhua), Bay of Plenty Region, North Island, New Zealand July 14, 2020 Steve Australasia New Zealand Sharp and very thin crystals of biotite with white concertina zircon crystal (indicated by red arrow). Width 5.5mm. Stack of 100 images.
Australasia Australia Victoria 0555 Biotite, Starling Gap, Powelltown, Victoria, Victoria September 20, 2019
Europe Germany 7124 Eulytine, Quartz, Biotite, Chrysocolla, Hechtsberg quarry, Hausach, Black Forest, Baden-Wurttemberg, Germany October 5, 2019
North and Central Americas United States Washington 4997 Arfvedsonite, Zircon, Albite, Willow Basin, Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA October 5, 2019