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.
Scotland United Kingdom 3788 Sphene, Quartz, Orthoclase, Biotite, Moll/Luib Road Junction, Loch Ainort, Isle of Skye, Scotland October 3, 2019
Australasia Australia South Australia 9162 JP2215 Synchisite-(Y), Magnetite, Biotite, Mannum Granite, South Australia September 23, 2019