Where it forms, where it's found
- Type locality
- Yuge Island
- Ehime Prefecture
- Japan
3recorded occurrences
Physical
- Lustre
- Vitreous
Optical
- Luminescence
- Nonfluorescent
Crystallography
- Cell parameters
- a = 9.922(10) Å · b = 18.03(2) Å · c = 5.352(9) Å
- Cell angles
- β = 105.30(10) °
- Ratio a:b:c
- 1 : 1.817 : 0.539
- Z
- 2
- Comment
Space group: C2, Cm or C2/m;
Chemical composition
Synonyms
- Kaliumsadanagait
- Potassic-ferro-sadanagaiet
- Potassic-Ferro-Sadanagait
- Potassicsadanagaita
In other languages
- German
- Kalium-Ferro-Sadanagait
- Italian
- potassic-ferro-sadanagaite · potassic-sadanagaite · sadanagaite
- Japanese
- カリ第一鉄定永閃石
Classification
Strunz
10th ed.9.DE.15
- 9SilicatesClass
- 9.DInosilicatesDivision
- 9.DEInosilicates with 2-periodic double chains, Si4O11; ClinoamphibolesGroup
- 9.DE.15Potassic-ferro-sadanagaiteSpecies
Group, growth & confusion
Literature, links & citation
Citations
- 1984Shimazaki, Hidehiko, Bunno, Michiaki, Ozawa, Tohru (1984) Sadanagaite and magnesio-sadanagaite, new silica-poor members of calcic amphibole from Japan. American Mineralogist, 69 (5-6) 465-471
- 1997Leake, B. E., Woolley, A. R., Arps, C. E. S., Birch, W. D., Gilbert, M. C., Grice, J. D., Hawthorne, F. C., Kato, A., Kisch, H. J., Krivovochev, V. G., Linthout, K., Laird, J., Mandarino, J. A., Maresch, W. V., Nickel, E.H., Rock, N. M. S., Schumacher, J. C., Smith, D. C., Stephenson, N. C. N., Ungaretti, L., Whittaker, E. J. W., Youzhi, Gou (1997) Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35 (1) 219-246
- 1998Mandarino, Joseph A. (1998) The Second List of Additions and Corrections to the Glossary of Mineral Species (1995) - The Amphibole Group. The Mineralogical Record, 29 (3) 169-174
- 1998Savel'eva V.B., Korikovskii S.P. (1998) Sadanagaite in biotite-corundum-margarite-spinel-anorthite crystalline shists of Western Pribaikalie. Doklady AN: 360: N1: 85-87. [in Russian]
- 2006Hawthorne, F. C., Oberti, R. (2006) On the classification of amphiboles. The Canadian Mineralogist, 44 (1) 1-21 doi:10.2113/gscanmin.44.1.1DOI: 10.2113/gscanmin.44.1.1
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Potassic-ferro-sadanagaite — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/potassic-ferro-sadanagaite-7248},
note = {Accessed 2026-05-11}
}