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Lorenzenite.

Оглавление

Titano-silicate of Na and Zr; TiO₂ = 35; ZrO₂ = 12%.

Orthorhombic; acicular.

G = 3·4. H = 6. Colourless; transparent.

South Greenland.

The Rare Earths: Their Occurrence, Chemistry, and Technology

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