Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 144
Weibyite.
ОглавлениеCarbonate of E, with Ca, Sr, F, and H₂O; allied to Bastnäsite (q.v.). Cer = 66·96%?
Orthorhombic; in pyramids resembling those of Zircon.
Crystals are small, and covered with a thin yellow crust; they are intergrown with Parisite (q.v.)
Langesund Fiord, Norway.