- The
mineral bastnäsite (or bastnaesite) is one of a
family of
three fluorocarbonate minerals,
which includes bastnäsite-(Ce) with a
formula of (Ce, La)CO3F...
- rare
earth elements: aeschynite-(Ce) aeschynite-(Y)
allanite apatite bastnäsite britholite brockite cerite dollaseite-(Ce)
fluocerite fluorite gadolinite...
-
Neodymium is
present in
significant quantities in the
minerals mo****te and
bastnäsite.
Neodymium is not
found naturally in
metallic form or
unmixed with other...
-
other rare-earth
elements in
minerals such as
those of the mo****te and
bastnäsite groups,
cerium is easy to
extract from its ores, as it can be distinguished...
-
contains 8% to 12% rare-earth oxides,
mostly contained in the
mineral bastnäsite.
Gangue minerals include calcite, barite, and dolomite. It is regarded...
-
lanthanide minerals such as mo****te,
relative to the
chondritic abundance.
Bastnäsite tends to show less of a
negative europium anomaly than does mo****te,...
-
almost three times as
abundant as lead. In
minerals such as mo****te and
bastnäsite,
lanthanum composes about a
quarter of the
lanthanide content. It is extracted...
- material. The prin****l
sources of rare-earth
elements are the
minerals bastnäsite (RCO3F,
where R is a
mixture of rare-earth elements), mo****te (XPO4,...
-
several minerals including cerite, gadolinite, samarskite, mo****te and
bastnäsite, the last two
being the most
common commercial sources of the element...
- LREE
bastnäsite ((Ce, La, etc.)(CO3)F)
contain on
average 0.1%
yttrium compared to the 99.9% for the 16
other REEs. The main
source of
bastnäsite from...
