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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
Environments
Sedimentary environments
Metamorphic environments
Parisite-(Nd) is a new mineral, approved in 2024 and pending publication as of May 2025.
Localities
At the type locality:ⓘ 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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