Definition of Fergusonite
Fer´gu`son`ite
n.
1.
(Min.)
A
mineral
of
a
brownish
black
color
,
essentially
a
tantalo-niobate
of
yttrium
,
erbium
,
and
cerium
; -
so
called
after
Robert
Ferguson
.
Related Words
atomic
number
39
,
atomic
number
68
,
atomic
number
73
,
Er
,
erbium
,
mineral
,
Ta
,
tantalum
,
Y
,
yttrium
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