Ytterlida pegmatite, Överlida, Svenljunga, Västra Götaland County, Sweden
3 cm crystal section of thortveitite in feldspar.
© Bertil Otter
Crystal section; 2.6x2.2x2cm; Specimen courtesy of Johan Kjellman. collection of Rudy Bolona.
Large single crystal approximately 6,5 x 3,5 x 2 cm.
© Johan Kjellman
Brown, euhedral zircon crystal in feldspar
Massive, shiny, black euxenite-(Y) with inclusions of greyish green thortveitite, in red microcline
Flat termination of a pale bluish green apatite crystal in feldspar
Short prismatic, pale bluish green apatite crystals in quartz and feldspar
Greyish green thortveitite associated with euxenite-(Y) in reddish microcline
Black, euhedral euxenite-(Y) crystals in microcline
A single, sharp greyish green thortveitite crystal in dark red microcline with a "top" layer of magnetite, biotite and euxenite-(Y)
Black, slender, broken prisms of allanite in feldspar
Cross section of a large, orange and vitreous monazite crystal in feldspar
Thin plate of black ilmenite associated with magnetite and traces of euxenite-(Y) in feldspar
Pale blue apatite crystal embedded in quartz
Thin plates of black ilmenite in intergrowth with a thin layer of biotite, hosting small, black crystals of euxenite-(Y)
Olive green thortveitite crystal in microcline. From B.O.
Magnetite crystal showing octahedral and cubic forms and iridescent surface.
© 2023 Harold Moritz