Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 128
Tachyaphaltite.
ОглавлениеAn altered zircon, containing H₂O. ZrO₂ = 40-50%.
Tetragonal; very close to Zircon.
G = 3·6. H = 51⁄2. Dark brown.
Kragerö, Norway.
