Читать книгу The Rare Earths: Their Occurrence, Chemistry, and Technology - Stanley Isaac Levy - Страница 36

A variety of Xenotime (q.v.) containing Zr. Yttr = 60·4; ZrO₂ = 7·4%.

Tetragonal.

G = 4·5. H = 4-5. Greyish white to pale yellow.

Diamond sands of Brazil.