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fergusonite

fergusonite is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

1.A mineral of a brownish black color, essentially a tantalo- niobate of yttrium, erbium, and cerium; -- so called after Robert Ferguson.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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What does "fergusonite" mean?

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Definition-first questions whose answer is fergusonite.

What is a mineral of a brownish black color, essentially a tantalo- niobate of yttrium, erbium, and cerium; -- so called after Robert Ferguson called?

Sources

Definitions: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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