Xianhuaite-(Ce)

Where it forms, where it's found

Type locality: East Mine
Bayan Obo deposit
Bayan Obo mining district
Baotou City
Inner Mongolia
China
41.8011°, 109.9817°

1recorded occurrences

Source · OpenStreetMap

Crystallography

Crystal system: Tetragonal
Space group: P4/mbm
Cell parameters: a = 12.5355(4) Å · c = 3.9213(2) Å

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
41NbNiobium Niobium 5 92.906 464.530
50.34%
8OOxygen Oxygen 15 15.999 239.985
26.01%
58CeCerium Cerium 1 140.116 140.116
15.18%
19KPotassium Potassium 2 39.098 78.196
8.47%
Total 922.827 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
41NbNiobium	Niobium	5	92.906	464.530	50.34%
8OOxygen	Oxygen	15	15.999	239.985	26.01%
58CeCerium	Cerium	1	140.116	140.116	15.18%
19KPotassium	Potassium	2	39.098	78.196	8.47%
	Total	922.827	100.00%

Synonyms

IMA2024-091
Xianhuaiet-(Ce)

In other languages

German: IMA 2024-091 · Xianhuait-(Ce)

Classification

Strunz

10th ed.

4.DL

4OxidesClass
4.DMetal: Oxygen = 1:2 and similarDivision
4.DLWith large (+- medium-sized) cations; fluorite-type structuresGroup
4.DLXianhuaite-(Ce)Species

Group, growth & confusion

1 mineral

Xianhuaite-(La)K₂LaNb₅O₁₅
Mineral
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Literature, links & citation

Citations

—Yang, B., Yang, L., Xue, Y., Sun, N., Li, G., Yu, J., Yan, G., Liu, J., Zhao, Y., Meng, W., Chen, Z., Chen, L., Liu, Z., Yan, Z. and Ao, X. (2025) Xianhuaite-(Ce), IMA 2024-091. CNMNC Newsletter 84, Mineralogical Magazine, 89, https://10.1180/mgm.2025.22

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Xianhuaite-(Ce) — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/xianhuaite-ce-471977},
  note      = {Accessed 2026-05-11}
}