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a. Anhydrous ferric tellurite as reddish-brown microcrystalline (cubic?)
crusts from Goldfield, NV. Spencer, 3
b. Titanozirconate of thorium, uranium, calcium, iron, etc., described as
zirkelite from Ceylon [now Sri Lanka], but differing in chemical
composition and also apparently in crystalline form from the original
zirkelite from Brazil. Spencer, 4
Source:
Dictionary of Mining, Mineral, and Related Terms
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