Item talk:Q162428
From geokb
Mindat Short Description
Typically found as earthy to somewhat waxy looking extremely fine-grained clayey masses, white to tan and also occasionally bluish or greenish.
Metahalloysite is dehydrated halloysite and characterised by a reduced interlayer spacing.
Originally...
Geoscience Ontology Status Notes
Originally named halloysite: Berthier P (1826) Analyse de l'halloysite, Annales de Chimie et de Physique 32, 332-334 Name changed to halloysite-7Å: Bailey S W (1980) Summary of recommendations of the AIPEA nomenclature committee, The Canadian Mineralogist 18, 143-150
IMA Formula (from Mindat)
Al2Si2O5(OH)4
RRUFF Formula (from Geoscience Ontology)
Al2Si2O5(OH)4
