Arrheniusite-(Ce)

Where it forms, where it's found

Geological setting: metasomatic F-rich skarn
Type locality: Östanmossa mine
Röberg ore field
Norberg
Västmanland County
Sweden
60.0833°, 15.9333°

1recorded occurrences

Source · OpenStreetMap

Safety & handling

Physical

Transparency: Translucent
Colour: greenish-yellow

Crystallography

Crystal system: Trigonal
Space group: #86
Cell parameters: a = 10.8082(3) Å · c = 27.5196(9) Å
Type-locality form: anhedral grains, rarely up to 0.8 mm in diameter

Crystal structure

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
58CeCerium Cerium 7 140.116 980.812
37.72%
8OOxygen Oxygen 37 15.999 591.963
22.77%
39YYttrium Yttrium 3 88.906 266.718
10.26%
20CaCalcium Calcium 6 40.078 240.468
9.25%
9FFluorine Fluorine 11 18.998 208.978
8.04%
14SiSilicon Silicon 6 28.085 168.510
6.48%
33AsArsenic Arsenic 1 74.922 74.922
2.88%
5BBoron Boron 4 10.810 43.240
1.66%
12MgMagnesium Magnesium 1 24.305 24.305
0.94%
Total 2599.916 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From IMA formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
58CeCerium	Cerium	7	140.116	980.812	37.72%
8OOxygen	Oxygen	37	15.999	591.963	22.77%
39YYttrium	Yttrium	3	88.906	266.718	10.26%
20CaCalcium	Calcium	6	40.078	240.468	9.25%
9FFluorine	Fluorine	11	18.998	208.978	8.04%
14SiSilicon	Silicon	6	28.085	168.510	6.48%
33AsArsenic	Arsenic	1	74.922	74.922	2.88%
5BBoron	Boron	4	10.810	43.240	1.66%
12MgMagnesium	Magnesium	1	24.305	24.305	0.94%
	Total	2599.916	100.00%

Synonyms

Arrheniusiet-(Ce)
Arrheniusitt-(Ce)
IMA2019-086

In other languages

German: Arrheniusit-(Ce) · IMA 2019-086

Classification

Strunz

10th ed.

9.AJ

9SilicatesClass
9.ANesosilicatesDivision
9.AJNesosilicates with BO₃ triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO₄Group
9.AJArrheniusite-(Ce)Species

Group, growth & confusion

5 members

Literature, links & citation

Citations

2020Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2020) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 53. European Journal of Mineralogy, 32 (1) 209-213 doi:10.5194/ejm-32-209-2020 DOI: 10.5194/ejm-32-209-2020
2021Holtstam, Dan; Bindi, Luca; Bonazzi, Paola; Förster, Hans-Jürgen; Andersson, Ulf B. (2021) Arrheniusite-(Ce), CaMg[(Ce₇Y₃)Ca₅](SiO₄)₃(Si₃B₃O₁₈)(AsO₄)(BO₃)F₁₁, a New Member of the Vicanite Group, from the Östanmossa Mine, Norberg, Sweden. The Canadian Mineralogist, 59 (1). 177-189 doi:10.3749/canmin.2000045DOI: 10.3749/canmin.2000045
2022(2022) Arrheniusite-(Ce). Handbook of Mineralogy. Mineralogical Society of America

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Arrheniusite-(Ce) — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/arrheniusite-ce-54242},
  note      = {Accessed 2026-05-11}
}