Item talk:Q162639
Mindat Short Description
Chemically closely related to arfvedsonite.
Geoscience Ontology Status Notes
Sauer A (1888) Ueber Riebeckit, ein neues Glied der Hornblendegruppe, sowie über Neubildung von Albit in granitischen Orthoklasen, Zeitschrift der Deutschen Geologischen Gesellschaft 40, 138-152 Redefined: Leake 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, Krivovichev 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 G (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, 219-246
IMA Formula (from Mindat)
◻Na2(Fe2+3Fe3+2)Si8O22(OH)2
RRUFF Formula (from Geoscience Ontology)
Na2(Fe2+3Fe3+2)Si8O22(OH)2
