Where it forms, where it's found
- Geological setting
REE granitic pegmatite dike
- Type locality
- Pegmatite vein no. 309
- Guanpo pegmatite field
- Guanpo
- Lushi County
- Sanmenxia
- Henan
- China
33.8747°, 110.7125°
2recorded occurrences
Physical
Optical
- Optical type
- Biaxial (-) · 2V measured = 36 – 40°
Crystallography
- Space group
- C2/c
- Cell parameters
- a = 5.1861(7) Å · b = 8.9857(13) Å · c = 19.970(3) Å
- Cell angles
- β = 95.42(3) °
- Ratio a:b:c
- 1 : 1.733 : 3.851
- Z
- 4
- Morphology
Scaly aggregate, grains
- Type-locality form
Scaly aggregates or in monomineralic veinlents. Most individual grains of luanshiweiite are less than 1 mm2.
Chemical composition
Synonyms
- IMA2011-102
- Luanshiweiiet
- Luanshiweiite-2M1
In other languages
- German
- IMA 2000-033 · Luanshiweiit
- Italian
- luanshiweiite
- Chinese
- 栾锂云母
Classification
Strunz
10th ed.9.EC.10
- 9SilicatesClass
- 9.EPhyllosilicatesDivision
- 9.ECPhyllosilicates with mica sheets, composed of tetrahedral and octahedral netsGroup
- 9.EC.10LuanshiweiiteSpecies
Group, growth & confusion
Literature, links & citation
Citations
- 2012Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2012) New minerals and nomenclature modifications approved in 2012. CNMNC Newsletter No 13. Mineralogical Magazine, 76 (3) 807-817 doi:10.1180/minmag.2012.076.3.26 DOI: 10.1180/minmag.2012.076.3.26
- 2013Fan G., Li G., Shen G., Xu J., Dai J. (2013) Luanshiweiite: A New Member of Lepidolite Series. Acta Mineralogica Sinica, 33. 713-721
- 2022(2022) Luanshiweiite. Handbook of Mineralogy. Mineralogical Society of America
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Luanshiweiite — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/luanshiweiite-42731},
note = {Accessed 2026-05-11}
}