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Formula: Ca(Nd,Ce,La)2(CO3)3F2
Carbonate, parisite group,
neodymium-, cerium- and
lanthanum- bearing mineral
Crystal system: Monoclinic
Specific gravity: 4.357 calculated
Hardness: 4 to 5
Streak: Pale yellow
Colour: Yellowish brown
Luminescence: Not fluorescent under UV
Environments
Sedimentary environments
Metamorphic environments
Parisite-(Nd) is a new mineral, approved in 2024 and to date (September 2025) confirmed only from the
type locality.
Localities
At the type locality, the Bayan Obo deposit, Bayan Obo, Bayan Obo mining district, Baotou City, Inner Mongolia, China,
parisite-(Nd) occurs as subhedral to anhedral irregular grains, from 0.02 mm to 1 mm in size, in
dolomitic marble.
Associated minerals include aegirine,
aeschynite-(Ce),
aeschynite-(Nd), baryte,
bastnäsite-(Ce), calcite,
fluorite, hematite,
magnetite, monazite group
minerals, parisite-(Ce) and
riebeckite
(Mindat).
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