Lucasite-(La)

IMA status
  • Approved
  • Pending publication
IMA symbol
Lca-La
Also known as
  • IMA2024-073
  • Lucasiet-(La)

Where it forms, where it's found

Type locality
Ermakovskaya-7 kimberlite body
  1. Tersky District
  2. Murmansk Oblast
  3. Russia

66.4283°, 35.5953°

1recorded occurrences
Source · OpenStreetMap

Crystallography

Crystal system
Monoclinic
Space group
#7
Cell parameters
a = 5.1811(7) Å · b = 8.828(5) Å · c = 9.806(5) Å
Cell angles
β = 93.11(2) °
Ratio a:b:c
1 : 1.704 : 1.893
Comment

I2/a Space group setting

Synonyms

  • IMA2024-073
  • Lucasiet-(La)

In other languages

German
IMA 2024-073 · Lucasit-(La)

Classification

Strunz
10th ed.

4.DH.10

  • 4OxidesClass
  • 4.DMetal: Oxygen = 1:2 and similarDivision
  • 4.DHWith large (+- medium-sized) cations; sheets of edge-sharing octahedraGroup
  • 4.DH.10Lucasite-(La)Species

Group, growth & confusion

In the same group
3 members
Commonly confused with
1 mineral

Literature, links & citation

Citations
  1. 2025Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2025) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 84. European Journal of Mineralogy, 37 (2). 249-255 doi:10.5194/ejm-37-249-2025 DOI: 10.5194/ejm-37-249-2025
  2. 2026Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2026) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 89. Mineralogical Magazine, 1-5 doi:10.1180/mgm.2026.10199DOI: 10.1180/mgm.2026.10199
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Lucasite-(La) — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/lucasite-la-471935},
  note      = {Accessed 2026-05-11}
}