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Tachyaphaltite.

Оглавление

An altered zircon, containing H₂O. ZrO₂ = 40-50%.

Tetragonal; very close to Zircon.

G = 3·6. H = 51⁄2. Dark brown.

Kragerö, Norway.

The Rare Earths: Their Occurrence, Chemistry, and Technology

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