interlayer cation in sodic micas as in brammallite (sodium illite) or in that crystallizing at higher temperatures, as paragonite
, is the cause of their smaller [d.
The Turkey material is from a diasporite and is associated with: diaspore, chloritoid, muscovite, paragonite
, titanian hematite, gahnite, "tourmaline," rutile, "chlorite," and calcite.
Moreover, the metahyaloclastitic matrix of some submarine breccias contains paragonite
, garnet and kyanite, and fragments in the breccia itself may contain almandine garnet growing around ilmenite aggregates.
3]X micas Increasing amounts of Si [right arrow] Increasing Muscovite amount of Fe K-Al [left arrow] Boromuscovite K-Al Paragonite
Na-Al Tobelite N[H.
From the Urals, were masses of nearly pure scaly paragonite
from Slyudorudnik, Vyshtym; pecoraite from Tscheremschanskoe; sonolite, alleghanyite, rhodonite, and alabandite from Inyltschek, Kyrgy; tobermorite, from Bazberovskoe; sellaite from Suranskoe, Bashkirien; and clintonite, from Shishimskie Gory.